不良研究所AV导航,免费观看欧美猛交视频黑人,AV女优天堂在线观看

  • ? 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
伊人久久精品久久亚洲一区 亚洲强奸五十路二区 俺也色色 影音先锋男人站日韩女优 色色资源网不卡 91精品国产综合久久久蜜臀粉嫩
广丰县 嵊泗县 阳信县 江油市 建宁县 淮北市
尼勒克县 县级市 武功县 沁水县 华亭县 博兴县
赤壁市 保靖县 治多县 洛南县 无锡市 讷河市