The light steel keel for ceiling system is including main channel, furring channel, wall channel, edge channel and other fittings. The steel frame is adopting high-grade quality hot-dipped galvanized steel band . The surfaces of the products are dealt with diagonal, reticulation weave and small pane weave, which all apply for the patents. The products dealt with pressed flower process are with the beautiful appearance and intensity toughness, besides, it can add 20% more than common paintless keel.