Zhejiang Zhongyang Screw Manufacturing Co., Ltd is a professional desinger, manufacturer, rebuilder and distributor of screws, barrels and other machine components for plastic and rubber industries. We are one of the leading manufacture of injection/ extruder screw and barrel in China. Our screws are of high quality and the best price. I&＃039;m sure this is a good chance to cut your cost. If you want know any price of the screw or barrel, please contact me with no hesitation.