All our measuring instruments (especially calipers, paint thickness gauges, and refrigerant pressure gauges) are calibrated quarterly according to ISO quality management system requirements to ensure the data we provide you is objective, accurate, and reliable.

This is a key legal issue. If the inspection is conducted by a third party appointed by us, we will be the primary responsible party and provide limited compensation to you, after which we will seek reimbursement from the inspection agency; if the inspection agency is designated by you personally (such as SGS), you will need to file a claim directly with that agency according to its service terms.

The nameplate date is the absolute time when the vehicle leaves the factory; the registration date is when the vehicle is registered with the traffic management department after sale. The difference represents the time the vehicle spent in the dealer's warehouse or logistics. If the time difference exceeds 6-8 months, the vehicle is considered a "stock vehicle," and we pay special attention to the natural aging of its rubber components.