increase the output,reduce the waste ,accurate registered LDPE Zipped (Self-buttoned)Bag Film Blowing Machine LDPE Zipped (Self-buttoned)Bag Film Blowing Machine1.Characteristics : Raw materials of this machine should be LDPE with melt index in 4.5-5.5, widely applying to high grade packing of food ,sugar, medicine, jewelry, garments, metal fittings, documents, directions, files etc., The market ...