Qingdao Tongsan Plastic Machinery Co., LTD is a professional plastic extrusion machines. We will supply you the high-performance and high-tech plastic machines, Hollow sheet machine, Corrugated pipe machine, wood plastic wpc making machine, plastic sheet machine, plastic pipe machine. Welcome domestic and overeas customers to visit our company with full passion. We are willing to work with you to unite as one with effort to create a bright future.