China, API 609, Triple Offset, Eccentric, Butterfly Valve, Wafer, Lugged, Flanged, Manufacture, Factory, Price, Caron Steel, Stainless Steel, A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3M, C3M A995 4A، A995 5A، A995 6A۔کلاس 150LB سے 2500LB تک دباؤ۔