Curtain semitrailer

Hello! I am interested in a curtain semitrailer. Please inform the following: 1. distance between the axles of the semitrailer;
2.Loading on the fifth wheel of the tractor and on the axles of the semitrailer by cargo weight of 20 t;
3.Compatibility of the semitrailer with the tractor MAZ 5440А5
4. Prices and availability 
Thank you in advance.

Hello, the representatives of the sales department will get in touch with you as soon as possible and answer your questions.