亚洲欧美国产双大乳头,亚洲精品无码久久毛片波多野吉衣,国产成人精品综合久久久

  • ? 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
国内性爱偷拍视频网站 42398次观看 一级一片免费播放 亚洲无码女优色色 久久永久免费人妻精品下载 一边吃着奶一边做着爱在线看视频 日韩欧美一区二区三区
逊克县 克东县 新巴尔虎左旗 宁城县 莲花县 景德镇市
金乡县 象山县 巴东县 沁源县 香河县 大兴区
平凉市 金沙县 青铜峡市 平陆县 福贡县 宁都县