民用镜子的生产长期以来采用化学镀银工艺,需要大量硝酸银,全国制镜行业每年实耗白银近50吨。但是目前,我国的白银生产水平较低、成本高、产量少、国家资源远不能满足国民经济的需要。为了给国家节约白银,使不足的贵重金属用到更必须的部门,从大局出发,制镜行业大有推广以铝代 The production of civilian mirrors has long been using chemical silver plating process, requiring a large amount of silver nitrate. The national mirror industry consumes nearly 50 tons of silver each year. However, at present, the production level of silver in our country is low, the cost is high, the output is low, and the national resources are far from meeting the needs of the national economy. In order to save the country silver, so that more than enough precious metals to the necessary departments, starting from the overall situation, the mirror industry has greatly promoted the aluminum generation