... home,sandwich panel, welded H steel,C/Z channel,corrugated steel sheet,etc.* Products&Service ... H-section, channel, steel column, steel beam),standard frames, secondary framing, roof & wall materials, Tempcon (sandwich) panels* Certificate:ISO9001:2000 ; ISO14001:2004Packing inf for ... the steel structureAccording to container size,container of 20 ...