... JIS G3455,JIS G3456,JIS G3457,JIS G3461MaterialQ235, 20#, Q345A53B, A106B, API 5L B,X42,X46 ... , chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industrySurface Black painting, ... and prompt delivery3.Rich supply and export experience, sincere service4. Reliable forwarder, 2-hour away from port Seamless Steel Pipe And Tube ...