... food grade. 3)Easy to hange molds. product detailsCY-400F automatic plastic lid forming machine can make kinds of plastic lids ... and shape . like PS ,PET ,PVC etc. This machine is automatic plastic lid forming machine, finish thermoforming, hole punching, die-cutting ... . adjustable stroke, easy to change molds 4.Adopt manipulator to feed, more accurate synchronization 5. GMP/QS standard to keep food ...