1.Butterfly hole punch,hole punch,used in making machine 2.Pneumatic hole punch machine for plastic bags,plastic bags,leak hole Punch PressHole punching machine, standing specifications Φ2 ~ 10mm, used in making machine Pneumatic hole punch machine for plastic bags, plastic bags, leak hole, food bag hook holes and so on. PE, PP, OPP, PO, PVC, PPE, CPE and other materials, products can be washed ...