Butterfly Valve, Flange Adaptor, Dismantling Joint manufacturer / supplier in China, offering DN40-DN600 Ci Di Wafer/Lug/Double Flange/U /Groove-End Type Butterfly Valve, DN150 Resilient Seated (Soft Sleeve) -Lug Type Butterfly Valve Pn10&Pn16, Butterfly Valvesudmo Butterfly Valvesbutterfly Valve Lugged Tamper and so on.