Asto Machine and Industrial Structure Manufacturing Company’s field of activity is focused on industrial steel structures. The wide range of its activities includes suspended bridge construction, aerial tanks, steel structure bridges, under pressure tanks, condensors for power plants, cement depot silos, cement mill, spherical silos, steel structure platform, feeder and steel structure equipment for factories and mines, stack, duct and casing construction for power plants and reservoir tanks. The construction process in Asto Co.