俺去也黄色图片,18禁超污无遮挡无码免费游戏,999国产精品999久久久久久

  • ? 58+

    Technical Expert Teams

  • ? 120+

    Sales For Countries

  • ? 500+

    Company People

  • ? 100000Tons

    Annual Output

about Rongsheng

Zhengzhou Rongsheng is a kiln overall solution service provider integrating, refractory, graphite electrode, metallurgical auxiliary materials research and development, manufacturing, kiln installation, and international trade. It serves metallurgy, nonferrous metals, building materials, electricity, petrochemical and other industries.

The group's headquarters is located in Zhengzhou, Henan. The factory is located in Xinmi City, the "Capital of Refractory". Xinmi city is rich in high-quality mineral resources and is close to the two railway arteries of Longhai and Beijing-Guangzhou, providing unique conditions for the production and transportation of refractory products. The main business of Rongsheng Group is the research and development, production and sales of graphite electrodes, metallurgical auxiliary materials and refractory materials, and undertakes the overall contracting business of various thermal equipment installation and construction services.

more
  • Historical process
  • FAQ
 Home  Whatsapp  Mail  Message
亚洲色图免费视频 做爱139分钟视频在线观看网站 2018AV视频 AV影 片在钱 人人妻人人澡人人爽欧美精品 欧州美女性开放免费网站
巴塘县 安国市 东至县 信宜市 莎车县 铜鼓县
和田市 万载县 阜平县 洛浦县 阿克陶县 原阳县
改则县 夏津县 遂溪县 新建县 永德县 濉溪县