精品无码久久久久成人漫画,两个人视频免费观看,一本一本久久A久久精品综合小说

  • ? 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
激情小说日韩无码 偷偷色噜狠狠狠狠的777米奇 久久黄色视频 欧美色图小说 操爽福利97人人操人人 久久av女优电影
宜都市 诸暨市 旅游 遵义县 白河县 五峰
娄烦县 宁远县 岐山县 娄烦县 孝感市 托克托县
扶风县 临清市 龙里县 霍城县 长兴县 盐城市