The thing that lift up n down is known as Air Compressor Power
Gate or power tailgate..
As for lorry, there are many kinds so you need to know what kind of
lorry you need in the 1st place..
Weight difference - 1.5ton, 3tons, 6tons,10tons, 16tons (Class
5)
Different in length - 10foot, 14foot, 16foot, 20foot, 24foot
Types of lorry - Open truck, Covered truck, cannoby truck
I owned a 10tons 24foot without power gate n that will cost 2k per
month on rental.. but can find cheaper ones
Just rented another 6tons 24foot with power gate for the month of
CNY for the price of 1.8k with a refundable deposit of
$200...
So state what you need