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Specializing in the assembly and manufacturing of butterfly valves made of various materials: Valve bodies include: HT cast iron, QT450 ductile iron, WCB cast steel, 304, 316, 316L stainless steel, LT lug butterfly valves, expansion butterfly valves, all-copper valve bodies, American standard valve bodies, etc. Valve plates: Ductile iron plates, stainless steel plates, rubber-coated plates, desulfurization plates, PTFE plates, copper plates, etc. Valve seats: Nitrile rubber, EPDM rubber, food-grade rubber, PTFE sleeves, butyl rubber, fluororubber, etc. Relevant accessories such as handles, worm gears, valve bodies, valve plates, and valve seats can be sent separately as required. Quality comes first. We cooperate with various valve brands across the country and widely serve various pipeline systems such as hydropower, chemical, water supply and drainage, and air conditioning. Welcome to call for detailed inquiries!