ps foam sheet extruding machine: 1. good quality with ISO9001: ... Plastic extruder adopts Gentian type double-stage series high foam technology.The raw material is general polystyrene granule.In ... and hauling off,it is winding to finished ps foam sheet rolls,After vacuum forming system,the finished PS ... supermarket tray,cake tray,KT board,instant noodle bowl,foam tray etc.It is widely used in the packing ...