... 5L, ASTM A106/A53, JIS, DIN 3: ISO9001 SGS,API 8" astm a106 gr.b galvanized steel pipe 1.Specification Type ... B,X42,X46,X52,X60, X65ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4STP G38,STP G42 ... , fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industrySurfaceBlack painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE,etc.PackagePlastic caps ...