... 3.Size:thickness:1mm-25mm 4.Length:6m 2013 HIGH QUALITY AQUARE RETANGULAR STEEL PIPE 1.Grade:Q195, Q235B, Q235C, Q235D, Q345B, ... requirementSection 15*15mm-600*600mm, Section:35*15mm-600*400mm Application Mechanical equipment, solar energy equipment, steel structure, auto part, bridge ... board2. flexible terms of payment by T/T or L/C 3. big discount for repeat customers4. smooth delivering procedure ...