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4-1500# WCC Long‑Distance Pipeline API 6D Standard Cast Steel Piston‑Type Check Valve
6–1500# CF8M Long‑Distance Pipeline API 6D Standard Cast Steel Piston‑Type Check Valve
8-1500# Long-distance Pipeline API 6D Standard Cast Steel Piston-Type Check Valve
10–1500# WCB Long-Distance Pipeline API 6D Standard Cast Steel Piston-Type Check Valve
8–2500 WCB Long‑Distance Pipeline API 6D Standard Cast Steel Piston‑Type Check Valve
2-1500# Double‑seal DIB pressure‑balanced inverted oil‑seal integral plug valve
2-150# Handwheel‑Operated Bi-directional sealing expanding DIB Internally Supported Cast Steel Plug Valve (General‑Purpose Valve)
3-150# Handwheel‑Operated Double‑Shut‑Off DIB Internally Supported Cast Steel Plug Valve (General‑Purpose Valve)
4-150# Handwheel‑Operated Double‑Shut‑Off DIB Internally Supported Cast Steel Plug Valve (General‑Purpose Valve)
6-150 Electric Double‑Block and Bleed DIB Internal‑Support Cast Steel Plug Valve (General‑Purpose Valve)