1, the establishment of inter-departmental joint inspection unit. 2. Establish quality gate for re-inspection of color parts. 3. Re-define the evaluation boundary of color parts. 4. Grid control according to assembly area. 5. Set up joint inspection teams for color parts and non-color parts respectively, cover all appearance parts in the production process once a week, and output evaluation, so as to form a ledger tracking improvement effect for problem points; 6. Painting in the quality gate of final assembly: Since May 2021, through the resolution of the project meeting, the quality gate of secondary re-inspection of painting will be started, and the secondary re-inspection will be given priority to the scratched high-frequency color parts in the final assembly and sub-assembly area; 7. Organize all relevant evaluation links to review the color parts at present, re-standardize the evaluation boundary of color parts, and sign on site for implementation; 8. Carry out grid management and control on the parts covered by the project in different regions to ensure that there are responsible persons for each part from material, loading and mutual inspection;
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