贵金属网站目录
贵金属网站目录
广东省珠宝玉石及贵金属检测中心
珠宝检测、金、银、玉器、钻石、水晶、珠宝培训、珠宝鉴定、珠宝评估、钻石分级。广东省珠宝检测、珠宝鉴定、珠宝培训、珠宝评估机构-珠宝行业门户网站-珠宝行业权威的鉴定检测机构-珠宝培训机构
- 2013-10-21 - 收藏London Metal Exchange(伦敦金属交易所)
The world's premier non-ferrous metals market. The LME offers futures and options contracts for aluminium, copper, tin, nickel, zinc, lead, aluminium alloy and NASAAC, steel billet, plastics, cobalt and molybdenum.
- 2010-06-07 - 收藏