1.Carbon Steel Tee 2.Size: 1/2"-72" 3.Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160 ... Tee1. Standard: ANSI B16.9 / 16.28, ASTM A53/A106, API 5L, ASME B36.10M---1996, DIN2605 / 2615 / 2616, JIS P2311/ ... 23122. Size: 1/2"-72"3. Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS4 ... galvanizing or as customer's special requirement China 1/2"-72" Carbon Steel Equal Pipe Tee