中文字幕爱爱,国产一区二区三区在线看片,视频网站做爱视频在线观看

  • ? 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
中文无码流水视频 视频 日韩 中文字幕 制服 欧美日韩国产一级毛片视频 草久影视 国产亚洲欧美在线观看的 日本成人一级一区东京热
吉安市 云龙县 盖州市 黄山市 射洪县 若尔盖县
淅川县 安徽省 兴化市 虞城县 武川县 龙州县
垦利县 新余市 剑川县 涟水县 嘉义市 额敏县