欧美精品久久男人的天堂,国产AV丝袜脚午夜全方,亚洲国产精品社区AV片,男人爱看的拍拍电影网站

RETURN

PERFO

Mining Metallurgy Chemical Metal Processing Environment Public Works Building Intelligent Equipment New Energy Digitalization and Intelligentization

Smelter Upgrading and Relocation Project of Chifeng Yunnan Copper Nonferrous Metals Co., Ltd.

400kt/a copper cathode. Side blown smelting furnace (SBF) + multi-lance top blown converter (MTC) + rotary anode furnace.