12345NextFactory A53/A106/ API 5L Grb Sch40 Seamless Carbon Steel
A53 SCH40 Welded Carbon Steel Pipe A53 SCH40 Welded Carbon Steel Pipe,Grade A53 GR.B,API 5L GRB,API 5CT GR.B,ST37,ST52 Outside Diameter 1/2-72 Wall Thinkness 0.5mm-80mm sch40--schXXS..ASTM A106/A53 GR.B 32 INCH Carbon Seamless pipe 1.Carbon Seamless Steel Pipes of API 5L/ ASTM A106/A53 GR.B.2.Hot Expanded Seamless Steel Pipes.3.