... BeamThe trusses are made of 353 style steel and 20*20 sqaure steel tube,some robs fixed on the ... 1200mm*1000mm, color:blue,red and whiteOptional AccessoryReassemble CeilingColor steel single sheetReassemble ground basementTwo kinds: adjustable height style and fixed ... is made of welded square steel tube, the panel are color steel corrugated single sheetDoorColor coating steel frame door, color:blue ...