欧美性爱先锋影音三级片首页,亚洲婷婷综合色高清在线,无码国产精品一区二区免费式直播

  • ? 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
少妇性俱乐部纵欲狂欢少妇 久久人人爽人人爽人人片av不 无码精品国产一区二区三区免费 人人超碰人人爱超碰国产 色色资源网址影音先锋 日本强好片久久久久久aaa
正安县 彰武县 东平县 石首市 兴业县 互助
赤峰市 长春市 通渭县 牙克石市 周至县 呼和浩特市
宣汉县 福鼎市 沁阳市 西畴县 公主岭市 清流县