... Section Shape:Square Usage:for transport liquid,transport pipe line,machinery part Specifications: 1,Galvanized steel square tube 2,usage: ... transport liquid,decoration3,Thickness: 0.6- 25mm 4,Competitive price and good qualityBrief inroduction: 1 Commodity name Square section steel tube ... Canada , Chile, Colombia,12 CertificatesSGS,ISO ,CEPRODUCT PHOTO: Square section steel tube