food box plate dishes tray PS foam thermoforming machine , Ellie Whats 008613780912769 1. PS Foam Sheet Extrusion Line : PS foam sheet machine adopts Gentian type double-stage series high foam technology. The raw material is general polystyrene granule. In the extruding process, vesicant is injected at high pressure. After extruding, foaming cooling, shaping and hauling off, it is winding to finished ps foam sheet rolls .After vacuum forming system, the finished PS foaming sheet can be made into variety of packaging vessels such as fast food box, aquatic plate, supermarket tray, cake tray ,KT bo…