Zhengzhou High-tech Zone Henan No.11 Boilers No.12 Wu Hai Chemical Processing No.13 Wu Ran Zhi Management No.13 Wu Ran Control No.14 Boilers Technology No.15 Feng Li Machines No.17 Water Treatment Equipment No.18 Boilers Equipment No.18 Rubber Industrial No.19 Huan Jing Ying Xiang Ping Jia No.23 Ceramics No.23 Qing Jie 守合同重信用企业 科技型中小企业 省科技型中小企业 高新技术企业 省级高新技术企业 省级专精特新中小企业 ISO9001认证 ISO14001认证