THE NEW PREMIUM STANDS BY GRAVITY®

Gravity® is an award-winning line of stands and accessories for stage and studio use and a brand of the Adam Hall Group. Expert engineers and users have teamed up to create thoroughly professional products with innovative details such as our unique colour coding rings.

Two years of extensive research and development have resulted in a comprehensive selection of high-quality stands and accessories that are built for reliable functionality and longevity. Gravity® products are made of superior materials only including thick-walled precision tubing, die-cast zinc and double injection molded thermoplastics.

NEWS

avfdbvafdb

Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec Gravity

Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec... Entretien avec Patrice Focone,... Entretien avec Patrice Focone, guitariste de... Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec Gravity

Au fil des années, le groupe français Superbus (le mot signifie “sublime”, “fier” en latin) s’est constitué une base de fans importante et fidèle. Le groupe de cinq musiciens, dont la chanteuse Jennifer ‘Jenn’ Ayache, s’est vu décerner, entre autres distinctions, un MTV Europe Music Award en tant que “meilleur groupe français” en 2005 pour son mélange créatif d’éléments pop et rock. Cependant, c’est en tournée que Superbus se sent le plus à l’aise. Cette année, le groupe a emporté sur la route une collection complète de pieds Gravity, dont un support pour guitare Glow, avec éclairage d’ambiance LED, pour créer des effets lumineux spéciaux ! Nous avons discuté avec le guitariste Patrice Focone du choix de l’équipement du groupe. Et comme Superbus est toujours en mouvement, la consigne était : questions courtes, réponses rapides. Bonne lecture ! Le groupe est souvent sur la route. Combien de spectacles donnez-vous par an ? Patrice Focone : Cela dépend si nous travaillons sur un nouvel album ou non. Lorsque nous travaillons sur un nouvel album, nous jouons entre 60 et 120 concerts sur une période de deux ans. Lorsque nous ne travaillons PAS sur un album spécifique, nous jouons entre 20 et 30 festivals pendant l’été. Comment Au fil des années, le groupe français Superbus (le mot signifie “sublime”,... Au fil des années, le groupe français Superbus (le mot signifie “sublime”, “fier”... Au fil des années, le groupe français Superbus (le mot signifie “sublime”, “fier” en latin) s’est constitué une base de fans importante et fidèle. Le groupe de cinq...

Systèmes audio, d’éclairage et intégrés – Adam Hall Group présente son vaste portefeuille à l’ISE 2025

Systèmes audio, d’éclairage et intégrés – Adam Hall Group... Systèmes audio, d’éclairage et... Systèmes audio, d’éclairage et intégrés... Systèmes audio, d’éclairage et intégrés – Adam Hall Group présente son vaste portefeuille à l’ISE 2025

Du 4 au 7 février 2025, le groupe Adam Hall présentera son portefeuille de produits diversifié sur deux stands lors du salon Integrated Systems Europe 2025 à Barcelone. Outre les dernières nouveautés en matière de technologie d’éclairage de Cameo, l’événement mettra l’accent sur les solutions audio, d’éclairage et de contrôle d’Adam Hall Integrated Systems destinées à être utilisées dans des projets d’installation. Les visiteurs de l’ISE peuvent également utiliser le service de navette gratuit du groupe Adam Hall pour visiter le showroom d’Adam Hall à Barcelone. Adam Hall Integrated Systems Cette année, les points forts du stand Adam Hall Integrated Systems – le segment de marché du groupe Adam Hall pour le secteur de l’installation – (stand 7B550, hall 7) comprennent une mise à jour majeure du logiciel de conception et de gestion LD Systems QUESTRA pour les solutions d’installation en réseau (QUESTRA contrôlera bientôt également l’éclairage), et l’extension de la série de haut-parleurs LD Systems DQOR avec ses propres modèles de caissons de basse pour une utilisation en intérieur et en extérieur. Cameo présentera également ses projecteurs RGBW certifiés IP67 et ses barres LED de la série DURA sur le stand Adam Hall Integrated Systems. Ces produits sont spécialement Du 4 au 7 février 2025, le groupe Adam Hall présentera son portefeuille de produits... Du 4 au 7 février 2025, le groupe Adam Hall présentera son portefeuille de produits diversifié sur deux... Du 4 au 7 février 2025, le groupe Adam Hall présentera son portefeuille de produits diversifié sur deux stands lors du salon Integrated Systems Europe 2025 à Barcelone. Outre les dernières...

The Adam Hall Group looks back on successful APAC partner meeting in Bali The Adam Hall Group looks back on... The Adam Hall Group looks back on successful APAC... The Adam Hall Group looks back on successful APAC partner meeting in Bali

The Adam Hall Group looks back on a successful meeting with its Asia-Pacific (APAC) partners in Bali. From 8 to 10 October, the event technology manufacturer headquartered in Neu-Anspach, Germany, invited nearly 60 distributors from the APAC region to the Indigo Hotel Bali Seminyak. The team presented the latest products from brands such as Cameo, LD Systems, Gravity, Palmer, and many more on site and rounded off the programme with a diverse range of hands-on and workshop offers. The Adam Hall Group has been continuously expanding its distribution network in the APAC region for several years now. Reference projects such as the League of Legends World Championship in Seoul, South Korea, or The Voice Thailand are proof of the ongoing market expansion of the brands Cameo, LD Systems, Gravity, Palmer & Co. To ensure that the various sales departments in the region stay informed of the latest and collaborate on tailored sales and customer strategies for each country and region, the Adam Hall Group team headed by COO Markus Jahnel, Global Business Development Manager Alessio Foti, and Global Marketing Director Kati Eismann offered a rich programme to the participants at the partner meeting in Bali. Aside from presenting new products The Adam Hall Group looks back on a successful meeting with its Asia-Pacific (APAC) partners... The Adam Hall Group looks back on a successful meeting with its Asia-Pacific (APAC) partners in Bali. From... The Adam Hall Group looks back on a successful meeting with its Asia-Pacific (APAC) partners in Bali. From 8 to 10 October, the event technology manufacturer headquartered in Neu-Anspach, Germany,...

Gravity, Palmer and Adam Hall Cables at Guitar Summit 2024! Gravity, Palmer and Adam Hall Cables at... Gravity, Palmer and Adam Hall Cables at Guitar... Gravity, Palmer and Adam Hall Cables at Guitar Summit 2024!

September 27-29 sees the return of Guitar Summit in Mannheim, Germany! The Summit has become THE event to attend in Europe every year if you love guitars, gear, music and the musicians who make it – and of course we’ll be there with a massive Gravity, Palmer and Adam Hall Cables presence as usual! The Adam Hall Group booth – where all three of our brands share the same collective space – can be found at Stand 002, Hall -1, and it’ll be stuffed full of all the newest and hottest gear. Gravity will be showcasing their Glow Stands for guitar and bass in all their brightly coloured glory, as well as their Touring Series stands, VARI-ARM series, seats for musicians, handy Carts, content creator tools, and much more! For Palmer, the Supreme Soaker – the brand’s analogue, dynamic tube amp hub – will take centre stage again, alongside the River Series of handy boxes (including DI boxes, reamp boxes, line isolators, signal splitters, and more!) for stage and studio alike. The Palmer team will also be showcasing their guitar-focused lineup of speaker cabinets, pedalboards and power supplies, as well as their STUDIMON 5 studio monitor speakers, their MONICON monitor September 27-29 sees the return of Guitar Summit in Mannheim, Germany! The Summit has become... September 27-29 sees the return of Guitar Summit in Mannheim, Germany! The Summit has become THE event to... September 27-29 sees the return of Guitar Summit in Mannheim, Germany! The Summit has become THE event to attend in Europe every year if you love guitars, gear, music and the musicians who make it...

Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD Systems and Gravity in Zambia

Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD... Adam Hall Group appoints Zirbo Zambia... Adam Hall Group appoints Zirbo Zambia as exclusive... Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD Systems and Gravity in Zambia

The Adam Hall Group is further expanding its international sales network. With Zirbo Zambia, the event technology provider headquartered in Neu-Anspach, Hesse, has gained an experienced sales partner in Zambia. Zirbo Zambia is one of the largest AV and event technology providers in Zambia and is now the exclusive distributor for solutions from the Adam Hall Group brands LD Systems and Gravity. Zirbo Zambia’s long-standing success is based on three service pillars: Consultancy and planning, rental and installation. Founded in 2004 by Italian pro audio veteran Alessandro Borzi and based in the Zambian capital Lusaka, the company regularly works for government institutions, international artists, places of worship and local events and also offers its customers its own AV studio for extended content production. “We are very pleased to be able to represent two strong brands exclusively in Zambia with LD Systems and Gravity,” comments Alessandro Borzi, founder and Managing Director of Zirbo Zambia. “Zambia is a comparatively young and dynamic country with numerous events and lively construction activity. We see a lot of potential here for the solutions from LD Systems and Gravity.” Alessio Foti, Global Business Development Manager of the Adam Hall Group, adds: “Zirbo Zambia impressed us with The Adam Hall Group is further expanding its international sales network. With Zirbo Zambia,... The Adam Hall Group is further expanding its international sales network. With Zirbo Zambia, the event... The Adam Hall Group is further expanding its international sales network. With Zirbo Zambia, the event technology provider headquartered in Neu-Anspach, Hesse, has gained an experienced sales...

We appoint Acoustic & Lighting System as exclusive distributor for Vietnam

We appoint Acoustic & Lighting System as exclusive distributor for... We appoint Acoustic & Lighting... We appoint Acoustic & Lighting System as... We appoint Acoustic & Lighting System as exclusive distributor for Vietnam

We continue to expand our international sales network. With Acoustic & Lighting System, we have gained an experienced distribution partner in Vietnam. Acoustic & Lighting System is one of the leading event and AV technology distributors in Southeast Asia and will take over the exclusive distribution for the solutions of the Adam Hall Group brands LD Systems, Cameo, Gravity and Palmer with immediate effect. In addition to the Vietnam market, Acoustic & Lighting System with its more than 150 employees also covers the sales markets of Malaysia, Singapore, Indonesia and Thailand. The extended range of services offered by the A&L Group includes technical project consulting as well as a comprehensive service and maintenance offer for all sales brands. “The Vietnamese market is one of the fastest growing regions in Southeast Asia and offers tremendous opportunities for a broad-based manufacturer like Adam Hall Group.” Ben Lee, Country Manager Vietnam of Acoustic & Lighting System Glenn Lin, Business Development Manager, Asia Pacific, adds: “The A&L Group has more than 30 years of sales experience in Southeast Asia and extensive expertise in audio and lighting. Given the rapidly growing pace in Vietnam, Acoustic & Lighting System is the perfect partner for Adam Hall We continue to expand our international sales network. With Acoustic & Lighting System,... We continue to expand our international sales network. With Acoustic & Lighting System, we have gained... We continue to expand our international sales network. With Acoustic & Lighting System, we have gained an experienced distribution partner in Vietnam. Acoustic & Lighting System is one of...

Tout afficher

NEWS

vdwfvw

Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec... Entretien avec Patrice Focone,... Entretien avec Patrice Focone, guitariste de... Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec Gravity

Au fil des années, le groupe français Superbus (le mot signifie “sublime”, “fier” en latin) s’est constitué une base de fans importante et fidèle. Le groupe de cinq musiciens, dont la chanteuse Jennifer ‘Jenn’ Ayache, s’est vu décerner, entre autres distinctions, un MTV Europe Music Award en tant que “meilleur groupe français” en 2005 pour son mélange créatif d’éléments pop et rock. Cependant, c’est en tournée que Superbus se sent le plus à l’aise. Cette année, le groupe a emporté sur la route une collection complète de pieds Gravity, dont un support pour guitare Glow, avec éclairage d’ambiance LED, pour créer des effets lumineux spéciaux ! Nous avons discuté avec le guitariste Patrice Focone du choix de l’équipement du groupe. Et comme Superbus est toujours en mouvement, la consigne était : questions courtes, réponses rapides. Bonne lecture ! Le groupe est souvent sur la route. Combien de spectacles donnez-vous par an ? Patrice Focone : Cela dépend si nous travaillons sur un nouvel album ou non. Lorsque nous travaillons sur un nouvel album, nous jouons entre 60 et 120 concerts sur une période de deux ans. Lorsque nous ne travaillons PAS sur un album spécifique, nous jouons entre 20 et 30 festivals pendant l’été. Comment Au fil des années, le groupe français Superbus (le mot signifie “sublime”,... Au fil des années, le groupe français Superbus (le mot signifie “sublime”, “fier”... Au fil des années, le groupe français Superbus (le mot signifie “sublime”, “fier” en latin) s’est constitué une base de fans importante et fidèle. Le groupe de cinq...

Systèmes audio, d’éclairage et intégrés – Adam Hall Group... Systèmes audio, d’éclairage et... Systèmes audio, d’éclairage et intégrés... Systèmes audio, d’éclairage et intégrés – Adam Hall Group présente son vaste portefeuille à l’ISE 2025

Du 4 au 7 février 2025, le groupe Adam Hall présentera son portefeuille de produits diversifié sur deux stands lors du salon Integrated Systems Europe 2025 à Barcelone. Outre les dernières nouveautés en matière de technologie d’éclairage de Cameo, l’événement mettra l’accent sur les solutions audio, d’éclairage et de contrôle d’Adam Hall Integrated Systems destinées à être utilisées dans des projets d’installation. Les visiteurs de l’ISE peuvent également utiliser le service de navette gratuit du groupe Adam Hall pour visiter le showroom d’Adam Hall à Barcelone. Adam Hall Integrated Systems Cette année, les points forts du stand Adam Hall Integrated Systems – le segment de marché du groupe Adam Hall pour le secteur de l’installation – (stand 7B550, hall 7) comprennent une mise à jour majeure du logiciel de conception et de gestion LD Systems QUESTRA pour les solutions d’installation en réseau (QUESTRA contrôlera bientôt également l’éclairage), et l’extension de la série de haut-parleurs LD Systems DQOR avec ses propres modèles de caissons de basse pour une utilisation en intérieur et en extérieur. Cameo présentera également ses projecteurs RGBW certifiés IP67 et ses barres LED de la série DURA sur le stand Adam Hall Integrated Systems. Ces produits sont spécialement Du 4 au 7 février 2025, le groupe Adam Hall présentera son portefeuille de produits... Du 4 au 7 février 2025, le groupe Adam Hall présentera son portefeuille de produits diversifié sur deux... Du 4 au 7 février 2025, le groupe Adam Hall présentera son portefeuille de produits diversifié sur deux stands lors du salon Integrated Systems Europe 2025 à Barcelone. Outre les dernières...

The Adam Hall Group looks back on successful APAC partner meeting in Bali The Adam Hall Group looks back on... The Adam Hall Group looks back on successful APAC... The Adam Hall Group looks back on successful APAC partner meeting in Bali

The Adam Hall Group looks back on a successful meeting with its Asia-Pacific (APAC) partners in Bali. From 8 to 10 October, the event technology manufacturer headquartered in Neu-Anspach, Germany, invited nearly 60 distributors from the APAC region to the Indigo Hotel Bali Seminyak. The team presented the latest products from brands such as Cameo, LD Systems, Gravity, Palmer, and many more on site and rounded off the programme with a diverse range of hands-on and workshop offers. The Adam Hall Group has been continuously expanding its distribution network in the APAC region for several years now. Reference projects such as the League of Legends World Championship in Seoul, South Korea, or The Voice Thailand are proof of the ongoing market expansion of the brands Cameo, LD Systems, Gravity, Palmer & Co. To ensure that the various sales departments in the region stay informed of the latest and collaborate on tailored sales and customer strategies for each country and region, the Adam Hall Group team headed by COO Markus Jahnel, Global Business Development Manager Alessio Foti, and Global Marketing Director Kati Eismann offered a rich programme to the participants at the partner meeting in Bali. Aside from presenting new products The Adam Hall Group looks back on a successful meeting with its Asia-Pacific (APAC) partners... The Adam Hall Group looks back on a successful meeting with its Asia-Pacific (APAC) partners in Bali. From... The Adam Hall Group looks back on a successful meeting with its Asia-Pacific (APAC) partners in Bali. From 8 to 10 October, the event technology manufacturer headquartered in Neu-Anspach, Germany,...

Gravity, Palmer and Adam Hall Cables at Guitar Summit 2024! Gravity, Palmer and Adam Hall Cables at... Gravity, Palmer and Adam Hall Cables at Guitar... Gravity, Palmer and Adam Hall Cables at Guitar Summit 2024!

September 27-29 sees the return of Guitar Summit in Mannheim, Germany! The Summit has become THE event to attend in Europe every year if you love guitars, gear, music and the musicians who make it – and of course we’ll be there with a massive Gravity, Palmer and Adam Hall Cables presence as usual! The Adam Hall Group booth – where all three of our brands share the same collective space – can be found at Stand 002, Hall -1, and it’ll be stuffed full of all the newest and hottest gear. Gravity will be showcasing their Glow Stands for guitar and bass in all their brightly coloured glory, as well as their Touring Series stands, VARI-ARM series, seats for musicians, handy Carts, content creator tools, and much more! For Palmer, the Supreme Soaker – the brand’s analogue, dynamic tube amp hub – will take centre stage again, alongside the River Series of handy boxes (including DI boxes, reamp boxes, line isolators, signal splitters, and more!) for stage and studio alike. The Palmer team will also be showcasing their guitar-focused lineup of speaker cabinets, pedalboards and power supplies, as well as their STUDIMON 5 studio monitor speakers, their MONICON monitor September 27-29 sees the return of Guitar Summit in Mannheim, Germany! The Summit has become... September 27-29 sees the return of Guitar Summit in Mannheim, Germany! The Summit has become THE event to... September 27-29 sees the return of Guitar Summit in Mannheim, Germany! The Summit has become THE event to attend in Europe every year if you love guitars, gear, music and the musicians who make it...

Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD... Adam Hall Group appoints Zirbo Zambia... Adam Hall Group appoints Zirbo Zambia as exclusive... Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD Systems and Gravity in Zambia

The Adam Hall Group is further expanding its international sales network. With Zirbo Zambia, the event technology provider headquartered in Neu-Anspach, Hesse, has gained an experienced sales partner in Zambia. Zirbo Zambia is one of the largest AV and event technology providers in Zambia and is now the exclusive distributor for solutions from the Adam Hall Group brands LD Systems and Gravity. Zirbo Zambia’s long-standing success is based on three service pillars: Consultancy and planning, rental and installation. Founded in 2004 by Italian pro audio veteran Alessandro Borzi and based in the Zambian capital Lusaka, the company regularly works for government institutions, international artists, places of worship and local events and also offers its customers its own AV studio for extended content production. “We are very pleased to be able to represent two strong brands exclusively in Zambia with LD Systems and Gravity,” comments Alessandro Borzi, founder and Managing Director of Zirbo Zambia. “Zambia is a comparatively young and dynamic country with numerous events and lively construction activity. We see a lot of potential here for the solutions from LD Systems and Gravity.” Alessio Foti, Global Business Development Manager of the Adam Hall Group, adds: “Zirbo Zambia impressed us with The Adam Hall Group is further expanding its international sales network. With Zirbo Zambia,... The Adam Hall Group is further expanding its international sales network. With Zirbo Zambia, the event... The Adam Hall Group is further expanding its international sales network. With Zirbo Zambia, the event technology provider headquartered in Neu-Anspach, Hesse, has gained an experienced sales...

We appoint Acoustic & Lighting System as exclusive distributor for... We appoint Acoustic & Lighting... We appoint Acoustic & Lighting System as... We appoint Acoustic & Lighting System as exclusive distributor for Vietnam

We continue to expand our international sales network. With Acoustic & Lighting System, we have gained an experienced distribution partner in Vietnam. Acoustic & Lighting System is one of the leading event and AV technology distributors in Southeast Asia and will take over the exclusive distribution for the solutions of the Adam Hall Group brands LD Systems, Cameo, Gravity and Palmer with immediate effect. In addition to the Vietnam market, Acoustic & Lighting System with its more than 150 employees also covers the sales markets of Malaysia, Singapore, Indonesia and Thailand. The extended range of services offered by the A&L Group includes technical project consulting as well as a comprehensive service and maintenance offer for all sales brands. “The Vietnamese market is one of the fastest growing regions in Southeast Asia and offers tremendous opportunities for a broad-based manufacturer like Adam Hall Group.” Ben Lee, Country Manager Vietnam of Acoustic & Lighting System Glenn Lin, Business Development Manager, Asia Pacific, adds: “The A&L Group has more than 30 years of sales experience in Southeast Asia and extensive expertise in audio and lighting. Given the rapidly growing pace in Vietnam, Acoustic & Lighting System is the perfect partner for Adam Hall We continue to expand our international sales network. With Acoustic & Lighting System,... We continue to expand our international sales network. With Acoustic & Lighting System, we have gained... We continue to expand our international sales network. With Acoustic & Lighting System, we have gained an experienced distribution partner in Vietnam. Acoustic & Lighting System is one of...

Tout afficher

Oui, j’ai lu et j’accepte la Déclaration relative à la protection des données.*

SOUDAGE DE PLASTIQUE PAR ROBOT

VOTRE MARQUE SUR VOTRE PROTECTION DE CÂBLE

DEFENDER® SUBTERRA

DEFENDER® RACE RESULT

Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec... Entretien avec Patrice Focone,... Entretien avec Patrice Focone, guitariste de... Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec Gravity

Systèmes audio, d’éclairage et intégrés – Adam Hall Group... Systèmes audio, d’éclairage et... Systèmes audio, d’éclairage et intégrés... Systèmes audio, d’éclairage et intégrés – Adam Hall Group présente son vaste portefeuille à l’ISE 2025

The Adam Hall Group looks back on successful APAC partner meeting in Bali The Adam Hall Group looks back on... The Adam Hall Group looks back on successful APAC... The Adam Hall Group looks back on successful APAC partner meeting in Bali

Gravity, Palmer and Adam Hall Cables at Guitar Summit 2024! Gravity, Palmer and Adam Hall Cables at... Gravity, Palmer and Adam Hall Cables at Guitar... Gravity, Palmer and Adam Hall Cables at Guitar Summit 2024!

Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD... Adam Hall Group appoints Zirbo Zambia... Adam Hall Group appoints Zirbo Zambia as exclusive... Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD Systems and Gravity in Zambia

We appoint Acoustic & Lighting System as exclusive distributor for... We appoint Acoustic & Lighting... We appoint Acoustic & Lighting System as... We appoint Acoustic & Lighting System as exclusive distributor for Vietnam

Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec... Entretien avec Patrice Focone,... Entretien avec Patrice Focone, guitariste de... Entretien avec Patrice Focone, guitariste de Superbus : En tournée avec Gravity

Systèmes audio, d’éclairage et intégrés – Adam Hall Group... Systèmes audio, d’éclairage et... Systèmes audio, d’éclairage et intégrés... Systèmes audio, d’éclairage et intégrés – Adam Hall Group présente son vaste portefeuille à l’ISE 2025

The Adam Hall Group looks back on successful APAC partner meeting in Bali The Adam Hall Group looks back on... The Adam Hall Group looks back on successful APAC... The Adam Hall Group looks back on successful APAC partner meeting in Bali

Gravity, Palmer and Adam Hall Cables at Guitar Summit 2024! Gravity, Palmer and Adam Hall Cables at... Gravity, Palmer and Adam Hall Cables at Guitar... Gravity, Palmer and Adam Hall Cables at Guitar Summit 2024!

Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD... Adam Hall Group appoints Zirbo Zambia... Adam Hall Group appoints Zirbo Zambia as exclusive... Adam Hall Group appoints Zirbo Zambia as exclusive distributor for LD Systems and Gravity in Zambia

We appoint Acoustic & Lighting System as exclusive distributor for... We appoint Acoustic & Lighting... We appoint Acoustic & Lighting System as... We appoint Acoustic & Lighting System as exclusive distributor for Vietnam