Dongrui company has been established since 1998 and located in Yiyang industrial zone in Luoyang city which covering an area of 110,000square meters. Dorian group has five high-tech light and heavy steel production lines, such as machinery, electronics, hydraulic, numerical control, etc which is used to design and produce steel structure buildings with various cutting surfaces and complex curve shapes. The group has another branch factory which specialized in producing kinds of color steel sheet, sandwich panel as the material of wall and roof to match with steel structure building. Dorian produce the steel structure warehouse, steel structure workshop, prefab house, container house, sandwich panel, etc.Dongrui group has one-stop service from designing, manufacturing, shipment to installation to meet the market and customers' requirement all over the world.