Mobile phones are in a trend of having thinner configuration due to emphasis on the design. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. The apparatus further comprises components to enable the processing of a workpiece. Paint material is drawn but of a paint canister and flows through a nozzle orifice in the nozzle and the central spray hole in the spray cap for atomization. Therefore, the high-sensitivity radar system can be built in a compact size.