漂亮人妻被中出中文字幕,人妻久久久一区二区三区,亚洲AV综合AV一区二区三区

  • ? 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
91高清免费国产 国产乱肥老妇精品视频 思思色播放器免費資訊 亚洲一区二区三区AV无码 色欲人妻AAAAAAA无码 伊人久久大香线蕉av最新午夜
西宁市 中超 溧阳市 柯坪县 蕉岭县 巨野县
丹江口市 隆昌县 新建县 沂水县 江陵县 苏尼特左旗
肥乡县 桐城市 辛集市 屯昌县 思茅市 五大连池市