Seamless pipe OD:3/4"~48" WT:2.5~60mm Standards:ASTM A53/ASTM A106/API 5L/API 5CT/JISG3452 /JISG3454/DIN1629 Gr.A25,A25P,A,B Seamless pipeOD:Various from 3/4" to 48"WT:Various from 2.5mm to 60mmMaterial: ASTM A53, ASTM A106,,10#, 20#, 45#, 16Mn, A25,A25P,A,B,X42,X46, X52,X56,X60,X70 C20, C45, St52, GB8162, GB8163, GB9711.1-1997, GB3087 Standards:ASTM, API, JIS,DIN, BS,GB, CNSSurface: Varnish ...