... )The frame is strong,durable,light in weight, not easy to rust and distort5) Eave connection:hot-dip galvanised steel insert ... coating cover.2) Waterproof, anti-UV radiation, flame retardant according to DIN 4201,B1/M2,NFPA7013) Weight for roof cover:850g ... inside,space can be 100% utilized. 2)Easy to set up and take down.Convenient to transport and store. 3)Installation on any grounds ...