Grout gate valves According to user requirements with pneumatic, electric devices ... using JB/T74-94 or HG20592-97 standard.3. Body Material Body material: WCB, ZG1Cr5Mo, ZG12CrMoV, CF8, CF8M, CF3, CF3M4. Users can ... .6 MPa, 1.0 MPa valve when ordering, please indicate.: Grout gate valves