I'm import usb flash from china, in aliexpress, and the shipping time is random.
I have made 5 orders in each order have 10 usb flash, 1º arrive at 20 days, 2º 35days, 3º 45 days, 4º and 5º 3 months.
Like this i import.
https://i.imgur.com/FpUm3Do.gif