处女色电影综合网,99国产精品久久久久久久成人热,国色天香天天影院综合网

  • ? 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
日本精品无码特级毛片 香艳三级片在线看 99热九九这里只有精品10 综合中文自拍欧美 国产亲妺妺乱的性视频 一本色道久久综合亚洲精
万载县 兴宁市 星座 贡嘎县 宝清县 温州市
莒南县 河西区 武陟县 科技 利津县 连山
岳阳市 海原县 育儿 上高县 横山县 正安县