By the rust removal, phosphating and passivating basic principles for steel,this treatment liquids are molybdenate as the main promotor.

据钢铁除锈、磷基本原理，实验确定了以钼酸盐为主要促进剂除锈、磷比、钝液。

Application of polyurethane enamel on farmer trucks with key points in the processes of phosphating, priming, atomic ash puttying and enamel spraying is described.

介绍农用运输车磷、底漆、刮原子灰、聚氨酯磁漆等工艺流程及注意事项。