Qingdao changjie machinery co., ltd. manager department

Qingdao Changjie Machinery Co.,Ltd. is one of the most famous modernized manufacture enterprise in China specilizing in manufacturing Plastic Extrusion Machinery, including Plastic tubing production line, plate production line, molding production line etc. The trademark ¿¿Changjie¿¿ has been registered in the National Industry and commerce Administrative bureau official registration and passed GB/