久久免费看黄a级毛片,天天射天天干天天操,亚洲色图激情小说

  • ? 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
午夜剧场先锋 在线性爱网站 男女床上网站在线观看 激情五月天乱伦小说网 av综合在线免费看 国产成人免费视频精品
剑阁县 策勒县 巨野县 葵青区 宁津县 福贡县
页游 勃利县 枝江市 文安县 汝南县 香河县
疏勒县 拜城县 集贤县 长海县 沈丘县 隆德县