激情内射人妻1区2区3区,亚洲欧洲激情小说视频,末成年女av片一区二区

  • ? 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
亚洲精品强奸导航 一本大道香蕉中文在线高清 日韩无码精品乱伦视频 日夜啪啪一区二区三区 大地资源二中文在线观看官网 美女做爱网站www在线观看免费
义乌市 鄂温 屏山县 宁武县 思南县 红桥区
博湖县 淅川县 云阳县 旅游 保亭 黎川县
贞丰县 铅山县 休宁县 阜平县 射阳县 乐至县