... screw extruder 2.Qingdao Techcreative plastic machinery CO.,LTD. Qingdao Techcreative plastic machinery CO.,LTD.is a high-technique joint-stock company,which ... ,and engaged in developing,designing and manufacturing all kinds of plastic and mechanic.Base on the developing tactic of quality and ... visit our factory!I m amy, waiting for you! sell plastic machinery twin screw extruder