国产日产欧美精品一区二区三区,影音先锋av中文字幕女优,亚洲国产精品无码久久电影中波多

  • ? 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
久久国产亚洲AV无码麻豆 少妇高潮一区二区三区99 未满十八18禁止免费无码网站 黄色a级伦理视频久久看 美女扒开腿让男人桶爽揉 av小说色图
白河县 深泽县 古蔺县 中山市 汉中市 盐源县
呼图壁县 荣昌县 泽库县 左权县 兴文县 宁安市
桐乡市 定州市 临泉县 凤庆县 定结县 林口县