... Back-to-back two station double winder Newest Film Plastic Blowing Machine For Shopping BagProducts information: ModelSJ-60/28-BL1200SJ-65 ... hardness and corrosion resistance Useage: The blown film machine is mainly used in the production of high-density polyethylene(HDPE), ... film, shrink film, tire film, agricultural plastic film, cloth film which are widely used for making garbage bags, packing bags, ...