Hertz
Ehi
Hawk
Generally, for a better deal at Shenzhen Airport it’s recommended to book in a timely manner (to save up to 73%). Cheapflights recommends you book around 79 days prior to your pickup date. Booking as early as you can also increases the likelihood that you’ll get the ideal car.
Typically how long you can rent a car for depends on the inventory of the supplier. For Shenzhen Airport however, it is certainly possible to rent a car for an entire month.