Size:1/2" to 72" 2)STANDARD:ASME,JIS,DIN,GB 3)Material:ASTM A234 WPB,A420 WPL3/L6 etc pipe fitting1.name: carbon steel pipe fitting2.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,ASME B16.9.SH3408 SH3409,HG/T21635,HG/T21631,SY/T050105.Material: A234-WPB.A420-WPL6.A234-WP12. ...