午夜福利视频,色色AV色色色,一级bbbbbbbbb毛片欧美

  • ? 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
亚洲综合图片网 日夜啪啪一区二区三区 永久免费观看国产裸体美女 拍拍爽爽 永久免费精品影视网站 一本大道香蕉中文在线高清
伊吾县 木里 石泉县 岑溪市 永兴县 黄陵县
远安县 塘沽区 军事 习水县 赤峰市 阿克苏市
伊金霍洛旗 柘城县 垣曲县 富源县 福清市 佛教