... Fixed headboard (ensures a rigid body) Fully braced hinge points (eliminates cracking of material) Hydraulic brakes and lights standard (S/4 upwards fulfils both HSE and highway regulations) Tapered bodies (S/5 upwards...
http://www.marshall-trailers.co.uk/printpage.cfm?id=11
...An appropriate air blast sprayer is also available from Fort. This crawler is in every sense modern, with disc hydraulic brakes and electro hydraulic controls, a mechanical transmission, multiple speed PTO, and Category I 3 point hitch...
http://www.ferrari-tractors.com/specialpurpose.htm
The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing ethylene glycol, to transfer pressure from the controlling unit, which is ...
http://en.wikipedia.org/wiki/Hydraulic_brake