Trunnion Ball Valve, Forged Ball Valve, Welded Ball Valve manufacturer / supplier in China, offering 3PC Worm Gear Fixed Ball Valve Fire Damper Safety Valve2500lb/1500lb/900lb/600lb/150lb, API 6D 3PC Fixed Trunnion Ball Valves 10K/15K/20K/25K/50K, 3PC 10K 32in Worm Gear Fixed Ball Valve and so on.
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