国产高清免费A片不卡在线观看,色色色色颠峰影音,77777亚洲午夜久久多喷

  • ? 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
WWW夜插内射视频网站 欧美人与拘一级毛片欧美大片 国产福利av无码的体验区 亚洲成高清a人片在线观看yau 乱伦熟女校园春色亚洲色图欧美激情 国产精品亚洲aⅴ片
南宁市 肃南 威信县 望都县 漳浦县 梁河县
邯郸市 芮城县 阿鲁科尔沁旗 武隆县 巴中市 和龙市
英超 临高县 喀喇沁旗 建始县 禹城市 武安市