Fast Assembling Pre Built Buildings / Prefab Workshop Buildings High Efficiency

Fast Assembling Pre Built Buildings / Prefab Workshop Buildings High Efficiency NO Steel structure parts 1 Main steel strucrure--Q345/Q235 steel 2 Secondary steel structure--Q235 steel 3 Wide span Single span or multiple spans, the max span clear distance is 36m, without middle column 4 Roof and Wall Option: Steel sheet,EPS, glass wool, rock wool or PU sandwich panel 5 Door and Window PVC or aluminum alloy window; sliding door or rolled door 6 Column and Beam Welded or hot