... , bellow, coupling, sleeve pipe 2:SS304.316, 304L, 316L etc. Stainless steel pump parts, auto parts, valve parts1: flange, bushing, bellow, coupling ... : SS304.316, 304L, 316L...etc The specialty processes the stainless steel: Stainless steel is featured with corrosion resistance, fatigue resistance, flexibility, high-press resistance, good ...