... Range: Seamless steel tubes/ pipes, Cold drawn steel tubes/ pipes, API SPEC 5L pipes, MATERIAL :ST 37, ASTM A106 Gr B; A53 ... , A210; API 5L X42, X46, X52, X56, X60, X65, X70, X80we may ... Co.LTDBusiness styleManufacturer Product Seamless Steel PipeStandardASTM,DIN,GB,JIS,API 5L,API5 CTMaterial20#,10#,45#,A53-A,A53-B,A106 ...