"Big pieces of jewellery mean high gold content, but that is no longer affordable," said Prabhu Thakkar, a gold trader based in Mumbai's Jhaveri Bazaar, a wholesale market for gold and silver.
孟买黄金及引批发市场雅韦里市场的一名黄金商人普拉布·撒克说：“一大件首饰就就意味着含有大量黄金，现在人们已经支付不起了。”
Results The content of acid and of such harmful metals as mercury, chromium and silver, can be prevented from rising too high.
结果四种处理方案使酸度高、有害金属汞、铬、银含量高得以控制。
Alloys with a high silver content, small melting range, excellent capillarity and fluidity. Used for brazing thin joints such as diaphragms, thermostats, electrical equipment, etc.
含银量高、熔点稳定，具有优异的渗透性和流动性，适于焊接薄膜、温控、电器装置等接触面小的工件；
应用推荐