... die head 3. Back-to-back two station double winder Computer Control Plastic Blowing Film Machine For Shopping BagProducts information: ModelSJ-60/28-BL1200SJ-65/28-BL1400SJ-65 ... as liquid packaging films, composite-based film, shrink film, tire film, agricultural plastic film, cloth film which are widely used for making garbage bags, packing bags, bacteria ...