Hom 1: Plating (los yog hloov dua siab tshiab) coatings Hlau plating yog cov txheej txheem ntawm kev hloov qhov saum npoo ntawm lub substrate los npog nws nrog nyias txheej ntawm lwm cov hlau xws li zinc, nickel, chromium los yog cadmium. Hlau plating tuaj yeem txhim kho cov kav ntev, kev sib txhuam nto, corrosion ...
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