... tube 3.Size:thickness:1mm-25mm 4.Length:6m 2013 HIGH QUALITY AQUARE RETANGULAR STEEL PIPE 1.Grade:Q195, Q235B, Q235C, Q235D ... *400mm Application Mechanical equipment, solar energy equipment, steel structure, auto part, bridge pile foundation, barrier, inner structure of vessel, decoration, furniture ... after cargo is loaded on board2. flexible terms of payment by T/T or L/C 3. big discount for repeat ...