QQ：
Certificate of quality promise unit in guangzhou
Patent gold medal certificate
Material supply network member unit certificate
Heavy contract, keep credit certificate
Chinese appliance industry association membership certificate
Chinese appliance industry association membership card transformer
Xinjiang electrical products into the network license
Xi'an electric equipment access certificate
Supply collaboration network license
Material box type substation supply collaboration network license
Certificate to use trademark 
Shandong Luneng network member certificate
