Zhoushan Oushengda Plastic Machinery Co., Ltd. (The original name is ZhouShan HuaYuan Plastic Machinery Manufactory.)dated from 1987,has developed into one of the largest manufacturer specializing in producing various screws & barrels for plastic machinery with over 20 years of hard working. Our main factory is located in China's Screw Town - Jintang Town in Zhoushan City, near to Ningbo Port and Shanghai Port. With the advanced variety CNC production equipments ,and advanced monitoring and quality testing equipment.It has passed the certification of ISO9001:2008 Quality Management System and kept improving. Which highly ensure our product with reliable quality to meet customer’s demand. In the core concept of “ Focus on Quality,and Pursue Excellence”,OSD staff are never stop providing better quality and service for customers.It has a high-efficiency production capacity and timely delivery capability to meet different customer requirements.To make the OSD brand products popular in domestic and all around the world.