SHANDONG TONGJIA MACHINERY CO. LTD.
Shandong Tongjia Machinery Co.., Ltd. is located in Jining National High-tech Industrial Development Zone, Shandong Province. It is a modern large-scale enterprise group integrating science, industry and trade, one of the largest professional manufacturers of plastic extrusion machinery in China, the vice president unit of China Plastic Machinery Industry Association, the vice president unit of China Plastic Processing Industry Association, and a national key high-tech enterprise. Chinese patent star enterprise. The company has passed IS09001, ISO14000, ISO18000 international management system certification.
