... steel tubes/ pipes, API SPEC 5L pipes, MATERIAL :ST 37, ASTM A106 Gr B; A53, A210; API 5L X42, X46, X52, X56 ... ,API 5L,API5 CTMaterial20#,10#,45#,A53-A,A53-B,A106-A,A106-B,ST37,ST42,ST52SpecificationO.D.:13.7-610mmW.T ... .run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Round Seamless Pipe(ASTM A106/53 Gr B)