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CN108757958A
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A kind of handle flange butterfly
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CN108730543A
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A kind of high intensity gate valve
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CN108799535A
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A kind of non-rising stem wedge gate valve
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CN108730542A
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A kind of novel evacuated gate valve
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CN109027291A
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A kind of ball valve sealing structure
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CN108679292A
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A kind of piston type remote controlled float ball valve
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CN108716554A
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A kind of two way seal gate valve
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CN108730613A
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A kind of Y types lip valve sealing structure
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CN108758034A
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A kind of parallel springs safety-valve
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CN108482958A
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A kind of Novel anti-blockage discharger
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CN108561580A
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A kind of wear-resistant embedded ceramic ball valve
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CN108374905A
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A kind of knife gate valve of wear-resisting high leakproofness
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