... price,square pipe manufactured according to standards:Product Name:Seamless Steel PipeSize:6-660mmShape:roundSteel Standard:GB,JIS G31301,ASTM ... Painted,Cutting,Holes and SlottedApplication:Structural steel.Construction building,Projext,indutry etc.Certifications:CO,CQ,MTC,FORM-E,CE, SGS ... , ISO, CCIC, NEMAQuotation Terms:Steel Mill Price,FOB , ...