No.144 Yongchuan District Popularity Ranking Chongqing No.14 Polyethylene PE No.17 Equipment Design No.31 Zhong Industrial No.33 Complete Equipment No.47 Hydraulics No.54 Ye Ya Chuan Dong No.54 Hydraulics Engineering No.54 Construction Machinery No.55 Hydraulics Technology No.58 Zhong Engineering Zhuan Yong Equipment Machinery Engineering 高新技术企业 省级专精特新中小企业 科技型中小企业 市科技型中小企业