90 degree elbow, seamless elbow, Carbon Steel Pipe Elbow, China Elbow Manufactory, Factory,supplier. Carbon Steel Elbows 1)Size:1/2" to 72" 2)Standard:ASME,JIS,DIN,GB 3) 4)Material:ASTM A234 WPB,A420 WPL3/L6 etc1.name: elbow 2.Size:From 1/2" to 48" (Seamless pipe fittings). From 26" to 72" (Seam pipe fittings)3.Wall thickness: Sch5-Sch160,XXS4.Standard: ISO, SNSI, JIS, DIN, GB/T12459,GB/T13401, ...