国产va免费精品观看精品,www亚洲com,日韩黄色片视频,久久婷婷人澡人人爽人人,成人免费试看,九九免费观看视频,国产又粗又猛又爽又黄的视频p站

Industry development
molybdenum industry

the group has been established the most complete system of molybdenum mining,smelting,processing,manufacturing,researching and trading。Additionally,the production capacity ranks the first in Asia and the third all over the world。With market shares up to 30% domestic and 8% oversea,it occupied the first place in Asia for Molybdenum production。