91美女在线播放,抽插人妻黄色视频网站,午夜影院操一操3

  • ? 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
亚洲综合色色网小米 日韩在线一区二区三区免费视频 亚洲国产成人无码电影 花野真衣AVHD在线 国产在线不卡视频免费视频 捆绑反绑性奴芙美
左权县 会泽县 广宁县 甘德县 阜平县 尉氏县
黔西县 德格县 新邵县 中卫市 颍上县 嵊泗县
绍兴市 枣阳市 六枝特区 铅山县 南充市 秦皇岛市