对非镀锌的和未涂防腐剂的金属表面进行磷化处理，以保证油漆的最佳附着效果。
B. Chemically treat non-galvanized, non-bonderized metal surfaces with a phosphate compound to assure optimum paint adhesion.
磷化：在钢铁制件表面上形成一层不溶解的磷酸盐保护膜的处理过程。
Phosphating: in steel on the surface of product form a layer of phosphate insoluble protective film processing.
膜层质量好，外观呈灰色，磷化膜表面无挂灰、返白现象。
The film quality is good, the appearance is gray, the phosphating film surface does not have the ash and the white phenomenon.
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