1.Carbon Steel Tee 2.Size: 1/2"-72" 3.Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS ... .10M---1996, DIN2605 / 2615 / 2616, JIS P2311/23122. Size: 1/2"-72"3. Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS4 ... varnish oil,hot galvanizing or as customer's special requirement China 1/2"-72" Carbon Steel Equal Pipe Tee