旋转式装料机

pump (fan, ventilator, blower), rotary pump

rotary-drilling machine with coupling (hitch) for mining

anti-fall device of rotary machinery【矿】

rotary valve

rotary drill bit (rotary boring head) deep drilling

herringbone milking station, rotary milking station, tandem milking station

rotary-drilling machine with gearing for mining

rotary chute (revolving chute) blast furnace