We withtech secured expertise by focusing on manufacturing and selling canopy and sports lighting, supplying supplies to demand agencies for 20 years, and having a large number of delivery and construction records among domestic procurement companies. In case of canopy, 60 different types of design items are registered with the Domestic Procurement Service, and we demonstrated product quality and technical skills through manufacturing and construction in Korea for 20 years. It also installed and delivered sports lights to large stadiums and public places In the case of an aluminum moulding bar that holds certificates such as Q Mark, ISO 9001, patent (canopy) and secures existing canopy roofing materials, rainwater leaks frequently occur between cracks in the roof and the moulding bar. However, in the case of patent moulding bars, the part where the moulding bar and roof material come into contact is finished with rubber and has the technology to be installed so that rainwater does not leak between the cracks in the moulding bar. The installation method of company column has construction technology suitable for all construction sites according to the site conditions, as there are construction methods using base plate and concrete, and insert perforated columns after using core drill.