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But ball valve of automatically cleaning
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Controllable check valve of flow
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CN111853345A
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Gate valve capable of preventing impurity blockage
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Stop valve with thermal-insulated effect
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Stop valve that leakproofness is strong
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Butt clamp butterfly valve with leakage alarm function
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A kind of butterfly valve enhancing service life
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A kind of easy-disassembling-assembling double-seal ball valve
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A kind of valve that protective is given by force
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A kind of ball valve of easy-to-dismount buffer-type
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A kind of anti-theft type gate valve facilitating installation
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