免费无码又爽又刺激A片涩麻豆,国精品无码一区二区三区在线,欧美色图亚洲视频激情文学

  • ? 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
澳门成人网站 美女内射无套日韩免费播放 2018男人天堂综合网 WWW夜片内射视频在观看视频 亚洲午夜成人网葡京 最刺激的乱惀小说目录
和田市 吉林省 开原市 临漳县 苏尼特左旗 辉南县
沙田区 阳新县 浏阳市 林西县 分宜县 平阳县
马山县 吉林市 义乌市 新郑市 徐闻县 牙克石市