精品无码久久久久成人漫画,两个人视频免费观看,97色伦图片97综合影院

  • ? 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
欧美精品亚洲精品日韩精品 狠婷婷精品无码亚洲中出 国产欧美精品亚洲一区二区 午夜免费操一操 岛国无码在线视频 网友真实露脸自拍10p
南开区 安吉县 犍为县 绥化市 罗田县 新民市
五指山市 南城县 长子县 红河县 景德镇市 枞阳县
南开区 勐海县 麟游县 桐庐县 万载县 肇源县