Demolition hammers [machines]; hydraulic hammers; hydraulic tools; grinding machines; stone-working machines; earth moving machines; winnowers; tools [parts of machines]; pistons for cylinders; dashpot plungers [parts of engines or motors]; mineworking machines; loader buckets for excavators; buckets for use with hydraulic lifting machines; buckets for earth moving machines; grabs [parts of machines]; jaws of life [powered rescue shears]; cylinders being parts of machines; pump diaphragms.