CHAIN-DRIVEN VEHICLES, CRAWLER TRACK VEHICLES, ROLLER CHAINS FOR CHAIN-DRIVENVEHICLES AND AS CONVEYOR BELTS, SETS OF CRAWELER TRACKS, COMPLETE RUNNING GEARS WITH SETS OF CRAWLER TRACKS AND UNDERCARRIAGE PARTS FOR CRAWLER TRACK VEHICLES, COMPLETE UNDERCARRIAGES FOR CRAWLER TRACK VEHICLE OF ALL KIND; RUNNING GEAR PARTS FOR CRAWLER TRACK VEHICLES, EQUIPMENT FOR MOUNTING CRAWLERTRACKS, INDIVIDUAL PARTS OF ROLLER CHAINS AND SETS OF CRAWLER TRACKS, I.E.,CRAWLER TRACKS, LINKS, END LINKS, TRACK PINS, BOLTS, NUTS, LOCKING DISCS, CLOSING LINKS, BRIDGING LINKS, RING LINKS, REPAIR LINKS, ROLLERS, SUPPORT ROLLERS, IDLER WHEELS, IDLER WHEELS WITHTENSIONING DEVICE AS MACHINE PARTS, IDLER WHEEL HUBS, IDLER WHEEL RIMS, DRIVE WHEELS, DRIVE WHEEL RIMS, SPARE PARTS FOR CONSTRUCTION MACHINERY, I.E., SEALS, SETS OF SEALS, TRACK PADS, DRIVE WHEELS, DRIVE WHEEL RIMS, DRIVE WHEELS FOR TRACK CHAINS WITH TENSIONING DEVICE AS MACHINE PARTS, DIGGING VESSELS, LOADING SHOVELS, DRAG LINES, MOULDBOARDS, REAR SCARIFIERS, HYDRAYLICAL AND MECHANICAL ESSENTIAL PARTS OF DRIVE UNITS FOR CONSTRUCTION MACHINERY AND THEIR ATTACHMENTS, SUPERSTRUCTURES AND BODY PARTS; REPAIRING AND SERVICING OF CRAWLER MOUNTED VEHICLES, THEIR CHAINS AND UNDERCARRIAGES, AS WELL AS OF CONVEYOR BELTS AND OF CONSTRUCTION MACHINERY SPARES; ASSEMBLY OF TRACK CHAINS