If you don't paint those metal trimmings on your Windows, they will soon rust away to nothing.
窗户上那些金属花边如不上油漆，很快就会生锈烂掉。
It can remove the rust on the surface of the stainless steel tube, oxide skin, old layers of paint and other dirt.
它能去掉不锈钢管表面的锈、氧化皮、旧的漆层及其他污物。
If it's to be painted on zincification or steeling or other metal surfaces, it's better to paint a film of EMME P401 water rust prevention metal primer before apply EMME E442.
如在镀锌铁或其它金属表面使用，最好是先涂一道EMME P 401的水性防锈金属底漆，再涂刷emme E442效果会更佳。
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