All members of the frame are made of low-carbon alloy structural steel, and the strength is higher than that of ordinary carbon steel pipe used for traditional scaffold. The frame is light in weight, the installation efficiency is significantly improved, and the labor intensity is greatly reduced. The accessories are made of automobile beam plate by stamping, with high bearing capacity. The U-shaped hook is widely used, and can be welded on any metal support. The U-shaped hook is flexible in use, has strong versatility, and the raw materials are upgraded, Low comprehensive cost, beautiful, durable, environmental protection;