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

据钢铁、磷化基本原理分析，经实验确定了以钼酸盐为主要促、磷比、钝化液。

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

介绍农用运输车磷化、喷涂底漆、涂刮原子灰、喷涂聚氨酯磁漆等工艺流程及注意事项。