普通防锈漆只能适用于已经除锈处理的钢铁表面,除锈越干净、防锈效果越佳。然而,钢铁表面除锈处理的工作量很大,特别是用手工刷打、铲、砂磨除锈工作,劳动强度大,效率低,并且消耗大量器材。据估计, Ordinary anti-rust paint can only be applied to steel surfaces that have been rust-removed. The more clean the rust, the better the anti-rust effect. However, the derusting treatment of steel surfaces involves a large amount of work. In particular, hand-brushing, shoveling, and sanding are used to remove rust, which is labor-intensive, inefficient, and consumes a lot of equipment. It is estimated that