steel tee 1.type:equal,straight,reducing,lateral tee 2.Material:carbon steel,stainless steel,alloy steel 3.sample available stainless steel reducing tee Size1/2'' ~ 48 ... , MSS SP-79; ISO 3419,ISO 5251,DIN 2605SY/T 0510, SY5257, SH 3408, SH3410MaterialCarbon steel:DIN St37.0, St45.8, St52.4 ... WP321,ASTM A182 F 304, 304L,316, 316L,321, 904LAlloy steel: ASTM A234 WP12, A234 WP11, A234 WP22, A234 WP5,ASTM ...