DONG YANG ENGINEERING SERVICES

This sub-class includes the manufacture and/or repair of machinery and/or parts for construction use, for instance: - continuous-action elevators and/or conveyors for underground use in construction - boring, cutting, sinking and/or tunnelling machinery (whether or not for underground use) for use in construction - machinery for treating minerals by screening, sorting, separating, washing, crushing, etc. for use in construction - concrete and/or mortar mixers for use in construction - earth-moving machinery (e.g., bulldozers, angle-dozers, graders, scrapers, levellers, mechanical shovels, shovel loaders) for use in construction - pile drivers and/or pile extractors, mortar spreaders, bitumen spreaders, concrete surfacing machinery etc. for use in construction - track-laying tractors and/or tractors used in construction - bulldozer and/or angle-dozer blades for use in construction - off-road dumping trucks for use in construction