... professional butterfly Valve manufacture directly suppling:dn150 hand lever operated cast iron wafer butterfly valve for cement Flange ... , VITON, PTFEShaft & Pin: SS410, SS416, SS304, SS316Actuator: Lever, Worm Gear, Pneumatic and Electric ActuatorProduct characters:1. Rubber backed ... any OEM BrandsCertificates&Approvals:ISO9001CE dn150 hand lever operated cast iron wafer butterfly valve for cement