精品久久久久久久免费人妻,天天爽天天爽夜夜爽毛片,精品欧美一区二区精品久久

  • ? 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
少妇性俱乐部纵欲狂欢少妇 720lu国产刺激无码 中国老熟女重囗味hdxx 欧美色图汇聚 欧美激情猛片xxxⅹ大3 亚洲成在人网站天堂大块网
宁国市 中江县 柳河县 民权县 马龙县 穆棱市
云南省 桐乡市 独山县 寿阳县 凤阳县 长顺县
肇源县 扬州市 安义县 扎赉特旗 乐昌市 邵阳市