... . It adopts Gentian type double-stage series high foam technology. 2. This equipment adopts high speed hydraulic ... granule (GPPS). 5. In the extruding process, foam agent (such as butane gas or LPG) is ... hauling off, it is winding to finished ps foam sheet rolls. 7. After vacuum forming system, the ... ,supermarket tray ,cake tray , KT board ,instant noodle bowl ,foam tray etc. 8. It is widely used in ...