国产一区二区三区视频,俄罗斯一级毛片aaaa,久久99精品久久久久久hb无码

  • ? 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
av女优天堂网黄色 欧美日韩中文字幕 精品免费久久久久久成人影院 久久久99久久精品人妻水蜜 美国乱伦一区二区 国产麻豆剧
长阳 西宁市 和龙市 阜平县 偃师市 吴川市
肇州县 淄博市 闸北区 公主岭市 沾化县 冷水江市
三门县 峡江县 思茅市 松潘县 论坛 开鲁县