1. The operating instructions of the die-casting process have been revised in place; <br>2. Several batches of continuous follow-up verification are required, and no complaints from customers have been received again, pending verification;
1, die-casting process operation guidance has been modified in place;<br>2, need to go through several batches of continuous tracking verification, did not receive customer complaints again, to be verified;
1. Die casting process operation instruction has been modified in place;<br>2. After several batches of continuous tracking verification, no complaints from customers are received again, waiting for verification;