PS ( Polystyrene):
1. Low static. And it can made anti-static electricity and electric material.
2. Easy coloring, light relative density.
3. Having longer area than PVC flat pieces with same thickness, width and weight.
4. Sanitation- this plastic resin is generally acknowledged for food packaging.
5. Environment protective- this plastic resin is easy to recycle and reproduce.
Vacuum tray ( PS. PE. PET. PP.), called tray, according to different flat pieces material, process to different quality of forming products.