The external inspection department shall go to the site once an hour to confirm the problems, and the unqualified parts shall be removed from the suppliers to the external inspection department for centralized treatment.<br>The external inspection department shall confirm the improvement status of parts.<br>Replace the sealing ring every day, and feed back to the laboratory for analysis.<br>The general assembly provides the fault vehicle, pulls the external inspection to carry on the analysis.<br>Leave the fault parts back to the laboratory for analysis.<br>Pull the design to analyze the direction of wiper pipe at the front panel.<br>
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