Stock photography, photos: Hydraulics cylinder Stock photos of Detail of digger's (Caterpillar) hydraulics cylinder. Photographed 2004 Oulu,Finland,Scandinavia,Europe Photograph: © Reino Hanninen Click for a larger image and more information Keywords associated with this stock photo: hydraulic,cylinder,grease,yellow,blue,sky,technology,metal,shiny,chrome,shine,detail,close-up,close,up,digger,power,steel,iron,metal,machine,part,wire,pressure,lift,lifting, outside,outdoors,day,daytime,daylight,sunshine,sunny