... -2000,GB/T 6728-2002,GB/T178-2005,JISG3466,ASTM-A53.BS1387,JIS-G3444,GB/T3091-2001 Material 10#, 20#, ... 45#, 16Mn, A53(A,B), A106(B,C) OD5-150mm Section Round Wall Thinkness1-20mm Length ... Hot rolled, Cold rolled, Cold-formed,ERW,High-frequency welded,Seamless,SAW, Bussiness way FOB ,EXW , CIF,CIP Inspection SGS or CIQ the cold-rolled precision seamless steel pipe