真人试看AV女优无码,精品综合欧美,人妻丰满熟妇av无码区免

  • ? 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
国产丰满麻豆videossexhd 911欧美片亚洲片 久久aⅴ乱码一区二区三区 亚洲成人精品在线 中国女人一级毛片 国内自拍第1页
三门峡市 东辽县 五华县 林周县 同江市 海兴县
木兰县 巍山 额济纳旗 平安县 长乐市 浏阳市
偏关县 南丰县 通海县 公安县 抚远县 容城县