Shenzhen Worthspark Co., Ltd. is USB Flash Disk developing,Website:http://www.powerbanksusb.com, manufacturing and marketing company. Since several years of operation and development, we already have a sound high-tech equipment and experienced developing and designing staff, enthusiastic service、 hard work and enterprising business team, as well as efficient collaborative production line workers . Our product quality, delivery time , after-sales service are in the leading position among peers.And we are accepted and trusted by domestic and international clients...