... ")---DN500(20") 2. Materials:317L 304/L/H 316/L 321/H 310S 347/347H,904L stainless steel 90 degree elbow ( 1) Type: welded ... /T21631, MSS SP-43, DIN 2605, JIS B2313.5) Material: Stainless steel (304, 304L, 316, 316L, 321, 321H, 310S, 347H). Super Duplex ... Steel ( S31803/2205, S32750/32760, 904L)6) Our products are solution & ...