亚洲AV无码码潮喷在线观看,18禁裸男晨勃露J毛免费观看,日韩免费在线

  • ? 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
久久偷看各类wc女厕嘘嘘 91久久久久国产一区二区 久草中文视频网站 骚b后入在线观看 性爱小视频免费观看 乱伦九九网
宣恩县 新丰县 白城市 广水市 庄河市 乳山市
舟曲县 沅陵县 马龙县 长岛县 道孚县 南召县
玉林市 小金县 武乡县 禹城市 来安县 青铜峡市