Speciality valve is the leading Lift Check Valve Manufacturers in India description- Body Material – BS 1868, BS 1873, API 6D, ASME B16.34, Carbon, Stainless, Alloy, Cast Steel(A216 WCB, WCC, LCB, LCC, WC6, WC9), WCB, SS304, 316L, Duplex Steel, 904L, Aluminium bronze , Stainless Steel [ SS316 , SS304, SS316L, SS904L, CF8, CF8M, F304, F316, F31L, F51, F3,F55, F91 ] Class – 150LB-900... https://www.specialityvalve.com/product-category/lift-check-valve/