精品人妻无码一区二区三区,久久无码精品一区二区三区,免费看操屄大片

  • ? 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
国偷自产Av一区二区三区吞精 CHINA贵州少妇VIDEO 性感性爱在线 色色爱5191视频 完整观看高清秒播国内外精品资源 酒店写真福利AV在线
湖北省 道真 灵璧县 盘山县 沈丘县 北流市
濮阳市 温泉县 平舆县 兴海县 金堂县 青海省
定兴县 博兴县 平度市 阳山县 东明县 汽车