Thickness: 0.6- 25 mm Section Shape:Square Usage:for transport liquid,transport pipe line,machinery part Specifications: 1,Galvanized ... and good qualityBrief inroduction: 1 Commodity name Square section steel tube 2 StandardASTM-554,ASTM-249,ASTM-270 ... the deposit 9 material0Cr18Ni9 10 Usagetransport liquid,decoration,exhaust pipe,machnery part11 Export to these countryMiddle east countries, India ...