... fitting and stainless steel fitting 2)Major Products: Seamless pipes,Elbow, Reducer, Tee, Pipe Cap, Flange and etc...3) Varieties: ... ,10#,20#,A3, Q235A, 20G,16Mn, ect)Alloy steel :(ASTM A234 WP12,WP11,WP22,WP5,WP9,WP91,16MnR, Cr5Mo, 12Cr1MoV, 10CrMo910 ... ,15CrMo, 12Cr2Mo1, ect)Stainless steel :(ASTM A403 WP304,304L,316,316L,321. 1Cr18Ni9Ti, 00Cr19Ni10,00Cr17Ni14Mo2, ect ...