Are there any 2 license plates for all tractor and semi trailer?
In front of the driving ability of the front is called a tractor, there is no traction behind the ability to drive vehicles called trailers, trailers are towed by tractor.
Tractor is a brand, trailer is a brand. The brand of the tractor is just like the brand we see. Such as: "Beijing A12345 Trailer" brand is on the brand with a hanging. Such as: Beijing A1234 hung,Semi trailer tractor is a commercial vehicle equipped with a special device for towing semi trailers.
There are two kinds of connection mode of the tractor and the trailer: the first one is the front half of a trailer traction saddle in the tractor rear section on the top of the back of the car bridge under traction Trailer part weight, which is half hanging; second is the front end of the tractor trailer even the rear of the towing vehicle only provide forward force, dragging the trailer go, but does not bear the weight down trailer, this is the whole hanging.