Lock parts of metal; locks (other than electric) of metal for use on buildings; mechanisms of metal (non-electric) for locking doors; metal bolts for locking doors; safety locks of metal (non-electric)

Connectors for concrete or metal structural members

Conveyor components for bulk materials handling; fittings and accessories for conveyors; conveyors (machines); band conveyors; belt conveyors; chain conveyors; circular conveyors; bucket conveyors; screw conveyors; spiral conveyors; strip conveyors; suction conveyors; cable driven conveyor belts; belts for conveyors; conveyor apparatus, components, parts and accessories used for transporting; conveyor belt rollers; conveyor belt cleats; conveyor belt scrapers; conveyor cages; conveyor belt cleaners; conveyor belt brushes; conveyor bearings; conveyor adjustors; conveyor tracking devices; conveyor guards and protection apparatus; conveyor flow apparatus; conveyor anti-wear apparatus; conveyor bucket elevators; conveyor anti-dust and anti-spill apparatus; conveyor belt scales; conveyor screens; conveyor protection and screen panels; lining materials for conveyors and conveyor belts; conveyor installations (other than those for the transportation of people); materials handling conveyors; supporting elements for conveyors; transporters (conveyors); vehicle conveyors; vertical bucket conveyors; unmanned transportation conveyors; sealing joints (parts of machines); conveyor guides; conveyor guide rollers; conveyor tensioners

Erosion control system consisting of precast interlocking concrete units