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GB / DIN Standard Midline Soft Seal Flange/Lug Type Resilient Butterfly Valve
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API Standard Condensation -proof Aluminum Alloy Cast Wafer Butterfly Valve
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High-performance Butt-type/Metal Seal Electric Double-eccentric Butterfly Valve
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API Standard Cast Steel Flange/Wafer Multi-layer Hard Seal TriplY-eccentric Butterfly Valve
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Telescopic Butterfly Valve
