QINGDAO TONGSANHEGU PLAST MACHINERY MANUFACTURING CO.,LTD was established in 1997 as a professional Plastic machinery manufacturer.  The main product of our company is PP Hollow Sheet Extrusion Machinery,Plastic single/double wall corrugated pipe machinery,WPC machine,and our Products have obtained CE and ISO Certificates .We have sold hundreds of plastic extrusion machines to more than 50 countries around the word.We always put machines quality and service first,looking forward to cooperation with each client win-win.