We are a professional manufacturer of screws and barrels for plastic and rubber machines. Located in Zhoushan China, from which comes 70% of the sales volume of screws and barrels in China, Yongxin is a well know competitor. Currently, our majors customers are those domestic manufacturers of extruders and injection machines in China. However, we are looking forward to opening overseas market. We promise to guarantee good quality and competitive price. Please send inquiries to ***** and welcome to visit our company at Zhoushan City, Zhejiang Province, PR China.