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Product name:welede steel pipe Welded steel pipe classification:longitudinal welded pipe,helical weld pipe,electric resistance welding,double submerged arcweld,longitudinal submerged arcwelding,SSAW. Material classification:stainless steel,carbon steel,alloy steel. Carbon steel classification:oridinary carbon steel,LCB Alloy steel classification:high pressure alloy,low press alloy Steel pipe in pipe end connection mode:light pipe,threaded pipe According to surface coated steel pipe:black pipe,galvanized pipe,aluminium pipe,aluminized pipe According to the classification of surface coating:epoxy coating,anticorrosion painting Bore:1/2"**4"(seamless),*6"**8"(seamed),DN**-DN***0,DN**-DN**0,DN***-DN***0,*8mm,*0mm,*3mm,*9mm,**4mm,**8mm,**9mm,**3mm,**4mm,**6mm,**6mm,**7mm,**8mm,**0mm,**1mm,**2mm Thinckness:2mm**0mm,SCH*0,SCH*0,SCH*0,STD,SCH*0,SCH*0,SCH*0,SCH**0,SCH**0,SCH**0,SCH**0SCH XS,SCH XXS,6.*5mm,7.*1mm,7.*2mm,9.*3mm,*2.7mm Length:5.8m,6m,*1.8m,*2m,as your requirement Package stype:in bundle,inbulk,withsteel protective cap on both sides Welded steel pipe standard: GB/T********8, YB/T********6, GB/T*********8, SY/T********0, SY/T********0, SY/T********0, SY/T********0 Seamless steel pipe standard: GB/T********8, GB/T********8, GB/T********8, GB********8, GB********6, GB********9, GB********0, GB/T*********2 Materials of steel pipe: carbon steel ：*0#，*0#，*6Mn，Q**5，ASTM A **4WPB, ASTM A**4 WPC,ASTM/ASME A**0 WPL3,ASTM/ASME A**0 WPL 6,ASTM/ASME A**0 WPHY ****************0 Alloy steel ：ASTM/ASME A**4 WP *-WP **-WP **-WP **-WP *-WP **-WP**1、*5Mo3 *5CrMoV、*5CrMoV, Stainless steel：ASTM A**3 WP**4,**4L,**6,**6L,**1 Certificate:ISO***1:***0 Application of steel pipe: petroleum,natural gas Surface treatment:painting,sand blast, type or as request.