Portal steel frame is one type of steel structural frame. This building Materials are widely used for steel structure building which the construction of the skyscraper possible.Portal steel frame is one type of steel structural frame. This building materials are widely used for steel structure building which the construction of the skyscraper possible. If you are thinking about building materials of your steel structural frames, the lixin portal steel frame will be the most good value solution for you. We provide custom -made design of steel structural frame as well as a factory price. The shape, size, chemical composition and strength of our structural steel frame is made in strict accordance with industrial requirements and regulations. The building materials are sourced from official suppliers, and every steel structural frame can be tailored to in shape the wants of clients concerning their different projects and requirements.