Weifang subtorwell Precision Machinery Co., Ltd. is a member of the Pump branch of China General Machinery Industry Association and a member of the professional committee of China screw pump industry. Single screw pump rotor, single screw pump rubber stator; Single screw pump rotor, single screw pump rubber stator; Screw drill tool rotor, screw drill tool stator; Single screw pump and accessories and other products of professional technology development and manufacturing enterprises...