To take the United States as an example, US $ 3 billion must be spent every year because metal implements are liable to corrosion from acid rain penetration--and the uses of electroplating are growing all the time.
它讓百物更美觀、耐久、不易生鏽，在酸雨腐蝕日愈嚴重的今天，以美國為例，一年因酸雨鏽蝕金屬器物，必須付出卅億美金代價，電鍍業也日益大發利市。