1.This is semi automatic machine 2.folded BOPP,PP,CPP,POF,PE material Use: This machine is suitable for opposite folding BOPP,PP,CPP,POF,PE etc various material(the smoothness of piece materials must be good).This machine is the working procedure before bag making.Function:1 Opposite folding,Auto-gluing,Folding organ bottom,Frequency adjusting speed.(can add install ultrasonic hobbing and pearly- ...