Qingdao Zhaoxing Extrusion Machinery Co.,Ltd is one of the best China pe board extrusion machinery manufacturers and suppliers equiped with ... die, 3 roller-ray unit, heating and leveling unit, roll cooling unit, edge cutting unit, traction, shearing unit, ... parts, sealing, cutting board, widely used in chemical industry, machinery, electric power, clothing, packaging, and food industries, in ...