Changsha Changsha County Hunan No.21 Su Adhesives No.25 Metal Products No.47 Polymer Materials No.49 He Gold Materials No.63 Molds No.74 Molds Manufacturing HVAC Materials Technology Ji Xie Ling Components Metal Materials New Materials Ling Accessories 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 省级创新型中小企业