... 2.low noise and work stably 1. This machine is suitable for making lids and trays with PS,PVC,PET sheets ... into one process Automatically.4. The frame of this machine made of high qulity stainless steel to make sure ... work stably.5. The journey of this machine is adjustable and easy to change the moulds for ... safety,meanwhile.resolve cross-contamination. SD420 Automatic Cup Lids Making Machine