A variety of sheet metal chassis enclosure parts can be processed in accordance with the drawings of the production, for the use of sheet metal chassis enclosure should be in line with the requirements of the drawings, but there is a material is more special, that is, the thin steel plate, generally are used in the cold-rolled steel, this is the industry is particularly familiar with the common sense. Professionals to use the material instead of obtaining the affirmation of the technicians. Sheet metal chassis shell parts in the spraying process should be bohu threads, for the coating process caused by the blockage should be re-tapped to rectify, threaded holes should be no slippery wire, broken buckle phenomenon, screws should be able to screw smoothly into its looseness and tightness of the right amount of insulating parts according to the drawings of the selected insulation, epoxy board or epoxy rod hard to do dip adiabatic paint, drying treatment. Do annealing treatment before bending, and bending corner radius should not be greater than the thickness of the sheet to avoid damage to the internal organization and cracking. The contact surface of the fastening connection part is required to be leveled. Sheet metal chassis shell parts in the spray protection requirements of the place can not be covered with paint or powder, the purpose is to ensure grounding continuity between parts.