<dd id="7h4w4"></dd>

<tbody id="7h4w4"></tbody>

<tbody id="7h4w4"></tbody>
<progress id="7h4w4"></progress>

RETURN

PERFO

Copper Smelter for Baiyin Nonferrous Group

Flash furnace+Baiyin furnace+PS converter+anode furnace+tankhouse,200kt/a+200kt/a  cathode copper, put into production.
First prize of Gansu Provincial Award for Science & Technology Progress.

2019天天看夜夜看狠狠看噜片_无码专区狠狠躁天天躁_台湾中文娱乐综合she天天_夜夜爽狠狠天天婷婷五月