brief introduction of steel structure building Steel structure is a structure which is made from the organized combination of custom-designed structural steel to meet architecture and engineering requirements of users. Steel structure buildings have two main parts. One is light gauge steel structure as bearing system, through changing its section to meet local wind and snow load condition. Another is insulation panel, doors and windows as its maintenance system. advantages of steel structure building strong, durable, flexible and customized; economical, efficient, adaptable and long lasting; attractive, functional and low cost; easy to build, energy efficient, and virtually maintenance free; fast construction in speed, small occupation of land, short construction period; multiple assembly and disassembly with 100% recycle; applications of steel structure building Warehouses, Manufacturing facilities, Agricultural buildings, Retail stores Plant facilities, Sporting facilities, Self-storage buildings, Fire stations Churches, Schools and etc. specifications of steel structure building Main construction frameCorner Fitting High strength bolt (inter-hexagon)--M12,8.8S Stand column--3mm steel sheet bending Bottom frame--3mm steel sheet bending; C100X45X2.0 Top frame--2.5mm steel sheet bending; C100X45X2.0 Connection plate(Q235B) Roof--1.5mm corrugated steel sheet and 50mm sandwich panel MaintenanceWall panel--50/75/100mm EPS sandwich panel Toilet wall panel--50/75/100mm EPS sandwich panel Floor --15mm cement board Door & window, accessoriesWater collecting and drainage --PVC Aluminum slidding door --W1800*H2050(customized size) Toilet sandwich panel door --W700*H1900(customized size) Window--PVC/Aluminum slidding window W500*H600 (customized size) Trimming--1.0mm galvanized /0.476mm steel sheet