Customized a testing line integrated with 3 sets of CCD cameras for a large hardware enterprise, with 300 pcs/min testing speed and ±0.005mm precision, capable of identifying 8 types of defects. After implementation, replaced 12 workers, improved testing efficiency by 4 times, reduced defect rate from 3% to 0.2%, saved 800,000 yuan labor cost annually, and received customer referrals after 1.5 years stable operation.