国产人妻精品一区二区三区不卡,久久国内精品自在自线,在卫生间被学长做好爽

  • ? 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
久高清无码 影音先锋熟女 欧美大黑bbbbbbbbb 精品一区二区三区色欲 苍井空一区二区波多野结衣av 麻豆国产AV超爽剧情系列
乌拉特中旗 桦川县 麻栗坡县 岐山县 高台县 保康县
兴义市 涞源县 甘洛县 镇沅 弥勒县 满城县
宜阳县 托克托县 临城县 万山特区 封开县 吴旗县