1. PS / PVC / PET / PLA plastic lid, cover, tray forming machine, 2. lids widely used for paper cups 4. 20-180mm ... DS-420 cup cover machine uses microcomputer programmable controller, touch panel operation frequency control, version ... .Efficient in producing PS/PVC/PET/PLA etc. plastic Lid, Cover, Tray, Plastic Container. ISO 9001:2000 standard, stainless steel finish ...