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CN111853299A
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Built-in valve
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CN111981151A
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Rotary gate valve
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Spiral gate valve
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CN110486488A
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Rotating gate plate valve
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CN110220017A
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Interior drive core pipe pilot valve
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CN110145604A
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Dual-valve body compound seal core pipe valve
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CN109780245A
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Dual-valve body fluid erosion prevention core pipe valve
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Fluid erosion prevention core pipe valve
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CN109751420A
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terminal buoyancy core pipe valve
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Dual-valve body bridge cut-off core pipe valve
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The hydrophobic core pipe valve of negative pressure deslagging
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CN110319230A
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Dual-valve body deep water primary and secondary core pipe valve
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CN110319202A
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Dual-valve body magnetic force core pipe valve
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CN110319226A
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Terminal core pipe valve
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CN110319338A
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The hydrophobic core pipe valve of dual-valve body
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Bivalve intracoelomic cavity drives core pipe valve
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CN110319201A
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Dual-valve body special type tank bottom core pipe valve
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CN110319203A
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It relies on oneself filling core pipe valve
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CN110319253A
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Extraordinary terminal core pipe valve
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CN110319257A
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Dust explosion protection terminal security core pipe valve
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