美女张开腿黄片免费,日本全日本黄三级全大电影,欧美成人精品三区综合A片

  • ? 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
高清拍拍拍无挡视频免费1000 色色小说网站在线免费观看 久久久久久久久熟女高清 国产人成视频在线观看 国产婷婷成人久久av免费高清 下载91短视频
遂宁市 阿拉善右旗 淄博市 抚远县 台江县 泾阳县
荣昌县 遵义县 松阳县 方城县 宁阳县 石门县
台州市 夏津县 兴国县 汽车 宜丰县 涞源县