ããOur company is professionally to produce Screw and Barrel to the plastic machine in china mainland.We made all kinds of Screw & Barrel for plastic machines,like film blowing machine ,injection molding machine and extruder machines. All our products with competitive price and high quality after-serivers. And we can be designed according to different raw materials and requirements of clients. ããAdvantages: ãã1)Quality first: Over 20 years Experience On Manufacturing Screw & Barre, experienced workers pay attention to every tiny procedure during the production and inspection, to ensure the precision of every dimension. ãã2) Specialty design: Over 20 years design experience perfessional engineers s can be designed according to different raw materials and requirements of clients. ãã3) perfect service: 24-hours Online Service by email or online-chat tools(Before&After sale service