国产一级A片在无极,无码精品久久久曰本AV中文,野娇娘三级片

  • ? 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
影音先锋最新在线活塞打桩3P 百度爱爱综合网 欧美午夜精品久久久久久se 婷婷乱伦 亚洲成人精品在线 一级毛片在线免费视频
宝坻区 黄大仙区 泉州市 隆林 明光市 马山县
龙游县 兰西县 庐江县 久治县 应城市 嵊州市
庐江县 新化县 眉山市 红原县 巴中市 南涧