Relatingtocoatings,ifoneoftwodissimilarmetalsincontactistobecoated,themorenobleormorecorrosionresistantmetalshouldbecoated.Why?为啥更耐腐蚀的一方要被涂涂料?... Relating to coatings, if one of two dissimilar metals in contact is to be coated, the more noble or more corrosion resistant metal should be coated.Why? 为啥更耐腐蚀的一方要被涂涂料? 展开