We can supply Boiler Seamless Carbon Steel Pipe,ASTM A 106GRB,A 53, DIN 2448,API 5L ... 2448,API 5L standard,aslo we have 8000tons stocks pipe. Seamless Steel Pipe1) Standard: GB DIN ASTM EN BS AND SO ONa ... : 0.5 - 55mm2) Application: pipe used for mechanical structure, hydraulic pressure, pneumaticlinear actuator3) Material: 10#, 20#, 35#, 45#, 16Mn, A106Gr.A ...