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Factory Supply Manual Lug Butterfly Valve Lever Operated Pn16 for Water Supply Sewer Fire Protection Construction Project, Find Details and Price about Butterfly Valve Ductile Iron Butterfly Valve from Factory Supply Manual Lug Butterfly Valve Lever Operated Pn16 for Water Supply Sewer Fire Protection Construction Project - TIANYI SUNS PIPE & FITTINGS CO., LTD.