12inch 300LB cast steel flange gate valve
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12inch 300LB cast steel flange gate valve

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12inch 300LB cast steel flanged gate valve,Top-mounted stem nut can prevent stem disc from faling off when valve is at open position and handwheel is taken off.Packing uses flexible graphite for dependable sealing performance.If reqsested by users.packing spacer ring and greasing mec-hanism can  be available.High quality cast steel gate valve exports to Russia.cast steel flanged gate valve