Knee guards for protection against injury (not adapted for use in playing sports); Knee pads for protection against injury (not adapted for use in playing sports); Knee-pads for workers

dry ice [carbon dioxide]; dry ice

automobile detailing; fitting of accessories for vehicles; fitting of vehicle accessories; vehicle detailing; fitting of vehicle parts; fitting of parts for vehicles; installation of parts for vehicles; installation of vehicle parts; tuning of bodies for automobiles; assembly services relating to the installation of vehicle accessories; assembly [installation] of vehicle accessories; assembly of vehicle accessories; assembly [installation] of accessories for vehicles; assembly of accessories for vehicles; tuning of bodies for vehicles; tuning of bodies for cars; automobile repair; car maintenance and repair; vehicle polishing; assembly [installation] of vehicle parts; assembly [installation] of parts for vehicles; car body repair services; car repair and maintenance