对夹式手动通风蝶阀
Wafer type manual ventilation butterfly valve
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法兰式手动通风蝶阀
Flanged manual ventilation butterfly valve
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气动切断通风蝶阀
Pneumatic cut-off ventilation butterfly valve
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大通径气动通风蝶阀
Large diameter pneumatic ventilation butterfly valve
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电动通风蝶阀
Electric ventilation butterfly valve
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大通径电动通风蝶阀
Large diameter electric ventilation butterfly valve
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电动圆形百叶蝶阀
Electric circular shutter butterfly valve
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电动矩形百叶蝶阀
Electric rectangular shutter butterfly valve
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泄爆阀
Pressure relief valve
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密闭泄爆阀
Closed venting valve
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气动调节型通风蝶阀
Pneumatically regulated ventilation butterfly valve
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电动高温通风蝶阀
Electric high temperature ventilation butterfly valve
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对夹式手动通风蝶阀
法兰式手动通风蝶阀
气动切断通风蝶阀
大通径气动通风蝶阀
电动通风蝶阀
大通径电动通风蝶阀
电动圆形百叶蝶阀
电动矩形百叶蝶阀
泄爆阀
密闭泄爆阀
气动调节型通风蝶阀
电动高温通风蝶阀