We use two steps: 1. Insert a medical-grade endoscope through the spark plug hole to visually inspect cylinder wall scratches and carbon buildup on the piston top; 2. Extract an engine oil sample to check for large metal debris or emulsification (caused by coolant leakage).

This is a macro policy minefield. Although used cars are rarely classified as dumping, if your single import quantity is too large and the declared price is significantly lower than local similar products, it can easily trigger an investigation by the tax bureau. We strongly recommend B2B buyers to break down shipments into smaller batches and use multiple invoices for customs clearance.

If your remitting bank requires verification of the transaction's authenticity, we will promptly provide: a commercial invoice (PI) signed and stamped by both parties, a scanned copy of the vehicle purchase contract, and our legal export enterprise registration certificate from the Ministry of Commerce in China.