... /API 5L Carbon Steel Seamless Pipe 1.Standard:ASTM,API,DIN 2.Grade: 10#-45#, 16Mn, A53-A369, API J55-API ... )Material: Carbon Steel Pipes2)Size: 1/2"-48"3)Standard: ASTM,DIN,JIS GBCARBON STEEL SEAMLESS PIPES:1) Pipe Diameter of Steel ... )StandardDIN17175,DIN1626,DIN2448,DIN17120,API 5L, API 5CT, ASTM A106, ASTM A53,ASTM A179,ASTM A210,ASTM A36,JISG3454,JISG3455,JISG3556,GOST8732,GOST8731MaterialGr. B, Gr ...