Inspection of gear transmission systems for general machinery and special-purpose equipment.

Timing gears of automotive engines, gearboxes, gear sets, differential gears, and steering system gears.

Aero-engine gearboxes, transmission gears of aircraft landing gears, and gear assemblies for spacecraft attitude adjustment.

Hydraulic pump gears, traveling mechanism gears, slewing bearing gears and other gear components for engineering machinery such as excavators, loaders and cranes.

Micro-precision gears and harmonic gears applied in instruments, meters, robot joints and other fields.