[backcolor=rgba(255, 255, 255, 0.701961)]The reason the method shown in this video is so important, is becasue with this method, no silver content is lost. The elements that cause the tarnish, that is, sulfur, leave the silver atoms and join the aluminum atoms. No loss of silver content. Therefore, no loss of metal value. 本帖最后由 ahgung 于 8-10-2012 01:02 PM 编辑