国产裸体美女永久免费无遮挡,久久久久麻豆V国产,免费观看呢日本天堂视频

  • ? 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AV最新高清 亚洲成成熟女多多网 国产午夜福利在线11 曰韩欧美亚洲美日更新在线 久草强暴毛片 影音AV二色在线
陆良县 长春市 施秉县 财经 南通市 鲁甸县
延安市 图片 罗定市 海兴县 广丰县 卢氏县
遵义县 普洱 秀山 苍山县 阿瓦提县 商城县