CN109681650A
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High oil field water injection steam injection manual shutoff regulating valve
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CN109681663A
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Upper dress superhigh temperature ball valve with high temperature-proof expansion card resistance structure
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CN109681662A
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Upper dress superhigh temperature ball valve
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CN108662170A
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Slurry special service valve
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CN108662179A
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Ardealite slurry special service valve and on-line cleaning method
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CN108405062A
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A kind of abrasion resistant roller
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CN106337940A
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High-performance angle type stop valve
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CN106001514A
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Casting process of high-silicon austenitic stainless steel casting
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CN105673864A
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Angle-type bell valve
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CN104653797A
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High-pressure self-balancing and self-sealing piston type throttle regulation stop valve
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CN104676030A
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High-temperature wear-resistant type bidirectional hard-sealing slurry-blowing shear valve
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CN104295764A
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Forced sealing ball valve
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CN104295765A
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High-temperature steam valve and assembling method thereof
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HVDC (High Voltage Direct Current) swing check valve
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CN104197028A
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Adjustable all-metal bidirectional hard seal type eccentric butterfly valve
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CN103640226A
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Manufacture technology of extra large caliber PTFE (Polytetrafluoroethylene) butterfly valve base
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Novel cock valve
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CN103470797A
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Friction-free flat gate valve resistant to high temperature and high pressure
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CN103470805A
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Top-installation ball valve with adjustable valve seat
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CN103131961A
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Corrosion-resistant stainless steel plate, and preparation method and application thereof
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