... gas/oil/structure/boiler/fluid.etc. 4.6000 tons/ month CARBON STEEL SMLS PIPES Connection: Weld & Thread Standard: ANSI, JIS, ... : Seamless steel tubes/ pipes, Cold drawn steel tubes/ pipes, API SPEC 5L pipes, MATERIAL :ST 37, ASTM A106 Gr B; A53, ... Steel Pipe Co.LTDBusiness styleManufacturer Product Seamless Steel PipeStandardASTM,DIN,GB,JIS,API 5L,API5 CTMaterial20#,10#,45#,A53-A,A53-B,A106-A,A106-B ...