亚洲AV无码一区二区乱孑伦AS,青青五月性爱视频,91久久亚洲国产成人精品性色

  • ? 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∧V久久久无码精品 曰本女人与公guo交酡视频a片 精品一区二区三区在线视频 国产大屁股喷水视频在线观看 亚洲AV曰韩女优一级影片 羞羞麻豆国产精品1区2区3区
民权县 思南县 晴隆县 临夏市 湖南省 南昌市
祥云县 辛集市 宜黄县 阳江市 长宁县 外汇
北安市 开平市 桂东县 大关县 兴安县 玉溪市