Third-party inspection is independent, professional, impartial, and consistently records the quality of feedback products. For any factory in the industry, profit may be a key goal. In order to maximize profits, the factory hopes to increase the source of revenue and reduce costs as much as possible without affecting the quality. If the supplier or factory issues its own inspection report, there is still a big gap in credibility compared with the inspection report issued by a third-party inspection company. Third-party inspection company has quite strict requirements in the inspection process, inspection standards, and inspector training.