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这是描述信息
D941X- Electric Flange Soft Seal Butterfly Valve

D941X- Electric Flange Soft Seal Butterfly Valve

D941X-10 Electric Flange Butterfly Valve

D941X-10 Electric Flange Butterfly Valve

D941X- Electric Flange Soft Seal Butterfly Valve

D941X- Electric Flange Soft Seal Butterfly Valve

Three-eccentric Multilayered Electric Driving Flange

Three-eccentric Multilayered Electric Driving Flange