Bombardier Transportation (ZWUS) Polska Sp. z o.o. is a provider of products and services such as signalling equipment and installations, mechanical, railway,signalling equipment and installations, electrical, railway,signalling equipment and installations, electromechanical, railway,signalling equipment and installations, electro-pneumatic, railway,signalling equipment and installations, electronic, railway,signalling equipment and installations, automatic interlocking, railway,signal masts, signal gantries, railway,railway signal boxes,signal lamps, electric, railway,railway signal flags,barriers, level crossing, non-electric,barriers, level crossing, electric,control and protection systems for level crossing barriers,controls, mechanical, for points and switches, railway,controls, electrical, for points and switches, railway,controls, electro-pneumatic, for points and switches, railway,switch point control boxes, railway,heating equipment, rail track points,control and warning equipment, automatic, railway,traffic control systems, railway,train describers (destination indicators),signalling and control systems, centralised, for underground railway networks,control systems, electric, for mountain railways and ski lifts,bells and compressed air horns, railway,passenger alarm equipment, railway,safety and surveillance control equipment for drivers, railway,barrier door systems, railway platform,test equipment, electric signalling, railway.