... SH AND HG Material: Carbon, Stainless, Alloy Certificate: API, ISO9001: 2000, Production Capacity: 6000 tons per month ... 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, ... Product Seamless Steel PipeStandardASTM,DIN,GB,JIS,API 5L,API5 CTMaterial20#,10#,45#,A53-A,A53- ...