Features: 1) Fabric materials:1000D double PVC coated polyester textile, and there are many advantages such as wind-resist, waterproof, sun block, inflaming retarding and free from contamination. 2) Fabric weight:620~750g per sq.m.,according to the DIN4102(Germany) B1(China) norm 3) Other side materials:Hardware alloy wall or Glass wall 4) Frame materials:The frame is consisted of steel(90%)&aluminum(10%) or aluminum(90%) alloy. It is firm and durable that the material of high strength maximal weatherproofing can be endured 62.5mph wind loading(0.5 KN per sq.m.). 5) Use: It can be used as all kinds of storehouses, plants and temporary rooms for construction. 6) The tent is constructed as one unit combination, with span width from 10 meters to 25 meters. The length of it is unlimited. Users may choose different length and span according to their needs. 7) The tent is without poles inside and its space can be completely used.The volume of the folded tent is small to carry and store. 8) The tent can be easily put up and demolished.(Two 300sq.m.tents can be installed within 3 hours by 6 people and can be demolished in only 1.5 hours).