![Wheel hub painting testing](https://img1577.weyesimg.com/uploads/www.guoou-testers.com/images/lim/15657704951484.jpg?imageView2/2/w/1920/q/75/format/webp)
Wheel hub painting testing
![customer testing in the factory](https://img1577.weyesimg.com/uploads/www.guoou-testers.com/images/lim/15657704567798.jpg?imageView2/2/w/1920/q/75/format/webp)
customer testing in the factory
![check the coating thickness on the car](https://img1577.weyesimg.com/uploads/www.guoou-testers.com/images/lim/15657697826437.jpg?imageView2/2/w/1920/q/75/format/webp)
check the coating thickness on the car
![Measuring the paint thickness in factory](https://img1577.weyesimg.com/uploads/www.guoou-testers.com/images/lim/15657696613601.jpg?imageView2/2/w/1920/q/75/format/webp)
Measuring the paint thickness in factory
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