China Class 600 LB Cast Steel Globe Valve Manufacturer Shinjo Supplies Class 600 LB Cast Steel Globe Valve, ASTM A216 GR WCB, BS 1873 / ASME B16.34.Parts & Materials 1. Body: ASTM A216 GR.WCB. 2. Seat Ring: ASTM A105 + Stellite Faced. 3. Disc: ASTM A105 + 13Cr Faced. 4. Disc ...