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Product overview 1.1 product model: GSD941W 1.2 product features The double water cooled ultra high
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Stainless steel pneumatic ventilation butterfly valve Ventilation butterfly valve used in chemical industry, bu
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Insulation pneumatic butterfly valves brief introduction: Of heat preservation for cold insulation BD643H pneum
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【 Introduction 】 1, using pendulum rod support structure, uniform distribution valve opening shock vibration sm
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