Industry stainless steel tee ,equal tee Material:stainless steel (304,304L,316,316L,321,321H,310S,347H) Industry tee ,equal tee, stainless steel teeMaterial:stainless steel(304, ... 304L,316,316L,321,321H,310S,347H)Seamless tee:size 1/2 inch-20inchButt ... /T 12459,GB/T13401,SH3408,SH3409. industry tee/stainless steel tee/equal tee