1 high-strength steel, durable, suitable for field work.2 unique design, reasonable layout, and create a comfortable working and living environment.3.used of PVC panels, fire panels,and other different materials, have a great effect on insulation, thermal insulation, sound insulation4 remove and transport easily , environmental and earth be protected well.5.variety colors to choose,and nice appearance.6. Lifetime steel structure more than 8 years, can be used repeatedly.7.If the Quality problems exposed with steel structure(Non-human causes),we would change a new one,and pay for all the charge.