... liquid,transport pipe line,machinery part Specifications: 1,Galvanized steel square tube 2,usage:transport liquid,decoration3,Thickness: 0.6- 25mm ... ,Competitive price and good qualityBrief inroduction: 1 Commodity name Square section steel tube 2 StandardASTM-554,ASTM-249,ASTM-270 ... (m)6-8m6 PackingSmall size, in bundles, big size, in bulk7 Payment Term30%T/T in advance,the balance against BL copy8 ...