green, brown and black camouflage silhouettes of gears and cogs

abstract action army background black brown camouflage chaotic circle cog cogs cogwheel cogwheels construction design details engine engineering equipment fabric factory gear gears gearwheel gearwheels graphic green hide industrial industry khaki machine machinery mechanical mechanism metal military motion pattern press printing protection rotate round screwwheel screwwheels seamless sign silhouette silhouettes soldier steam system technical technology textile texture turn uniform vector wallpaper wheel work