English
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A resiliently driven compensating union valve
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A pressure-locking butterfly valve
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A floating fine-tuning type square tube
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A pipe body joint
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A transversely clamped tubular joint
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A sliding locking tube body joint
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A union-adjustable duct elbow
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A clamp-lock butterfly valve
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A snap-on type union valve
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A linked sealed damper
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A telescopic floating rectangular tube sleeve
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A telescopic rotary plug-in union valve
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A pre-installed snap-fit rectangular sleeve
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