Manufactured automatically in workshop，the pre-engineered metal building system uses bolts instead of welds to erect。It is widely used in industrial factories，commercial buildings，distribution centers，dinning halls，shops，warehouses，hangars and multi-story steel buildings。

Features and benefits:

　　1、it is of light deadweight and requires lower base treatment。
　　2、because the components of this metal system are pre-manufactured in workwhop，the construction time can be largely shortened。
　　3、this structure is handsome in appearance and flexible in structure。Under certain parameters，this structure is much more economical。
　　4、for the erection of this structure，bolts are used instead of welding。That avoids the possibility of getting out of shape occurred in welding。
　　5、it is very good for environment protection because it uses less sand and cements etc… and the steels can be reused after building dismantling。