No.450 Qingdao Popularity Ranking No.81 Chengyang District Shandong No.2 Hardware Products No.2 Wu Jin Chang / Hardware No.3 Pneumatics Technology No.3 Di Ya Appliances No.4 Machinery Hardware Processing No.5 Dian Qi She Bei Yong Dian Lan / Lines Cable No.5 Dian Kong No.6 Parts Manufacturing No.6 Dian Xian / Cables No.6 She Bei An Apparel No.7 Processing Equipment No.15 Hardware ISO9001认证