Light steel keel is a metal skeleton for building, which is made of high-quality continuous hot-dip galvanized steel strip and rolled by cold bending process. It is used for modeling and decoration of non-load-bearing walls and building roofs with gypsum board, decorative gypsum board and other light plates as facing. Suitable for the modeling and decoration of roofs of various buildings, and the basic materials of internal and external walls and roofs of buildings. Features: 1, excellent manufacturing equipment, advanced production technology, scientific detection means, high rolling accuracy of product surface and beautiful and straight appearance. 2. High-quality cold-rolled continuous hot-dip galvanized coils are used as raw materials, which are uniform in material, moderate in hardness, light in weight, fireproof, convenient to assemble, unaffected by seasons, simple and fast in construction, greatly shortening the construction period and improving work efficiency. 3. Double-sided zinc plating amount 1.20g/m2, strong corrosion and rust resistance and long service life. 4. Reasonable cross-section structure and humanized design: the design of the hitting point of the auxiliary keel and the vertical keel can effectively prevent the self-tapping nail from slipping and improve the construction speed; The design of reinforcing ribs at the edge of auxiliary keel improves the rigidity of keel and has stronger settlement resistance; The design of high and low sides of vertical keel makes the buckle more perfect and increases the design scheme of product application.