No.47 Wangcheng District Popularity Ranking Changsha Hunan No.22 Welding Equipment No.33 Structural Parts No.50 Ye Ya Chuan Dong No.50 Hydraulics Technology No.51 Hydraulics Engineering No.53 Hydraulics No.81 Equipment Manufacturing No.91 CNC Hydraulics Station Zuan Xi Processing Center Ye Ya Dong Li Station 高新技术企业 科技型中小企业 省级专精特新中小企业 专精特新小巨人企业 省级高新技术企业 省科技型中小企业