Ventilation system. Ventilation systems. Pipe system. Hall buildings. Contract manufacturing. Service and maintenance. HOMEPAGE THE COMPANY VENTILATION SYSTEM & PIPE SYSTEM HALL BUILDINGS LEGO MANUFACTURE SERVICE & MAINTENANCE CONTACT To PVT PVT, Plåt- och Ventilationsteknik AB manufactures ventilation systems, ventilation systems and pipe systems. We can take care of the entire chain of measures - from design and manufacturing to final assembly. We have extensive experience and are specialists in the manufacture of facilities for, among other things, commercial kitchens, restaurants, hospitals, the pharmaceutical industry, the food industry and the process industry. At AstraZeneca in Södertälje, there is extensive equipment made of stainless steel material from PVT