1.Carbon Steel Tee 2.Size: 1/2"-72" 3.Wall Thickness: ... ,SCH80,SCH160,XXS 4.Standard: ANSI,ASME,ASTM,JIS,DIN Carbon Steel Tee1. Standard: ANSI B16.9 / 16.28, ASTM A53 ... varnish oil,hot galvanizing or as customer's special requirement China 1/2"-72" Carbon Steel Equal Pipe Tee