... :DIN,JIS,ASTM,ASME,API Certification:API/ISO9000 10 inch sch100 jis standard steel pipe Type steel pipePipe Size1/ ... JIS G3457,JIS G3461MaterialQ235, 20#, Q345A53B, A106B, API 5L B,X42,X46,X52,X60, X65ST37.0,ST35.8, ... drilling, chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industrySurface Black painting, varnish paint, ...