HK Hancheng Technology Co.,Limited was established at 2011 in HK Hancheng is one of the best wholesaler and manufacture of power bank and laptop battery and laptop ac adapter with certificate ISO90001,CE,FCC&ROHS .We focus on providing high quality product with competitive price and best service. At present ,we have built long and stable cooperation relationship with customer from US ,Canada ,Germany ,Poland and Russia and South Africa and so on .Honesty, Innovation ,Win-Win Cooperation is the principle to our customer.We Believe with the effort of both, we are confident that we can become long-standing partners and achieving win-win result. Hope we have the chance to service you in near future.