International wire transfers generally follow "shared (SHA)" or "sender pays all (OUR)" principles. To ensure we receive the full remaining payment to release the bill of lading, we require all buyers to choose the "OUR" option when remitting, covering all intermediary bank fees.

We use an internationally certified electronic signature platform (such as DocuSign or Adobe Sign). Each signed contract generates a digital certificate with a timestamp and encrypted hash value, which has full legal defense effectiveness in international arbitration courts.

To prevent intermittent failures due to aging of the resistance wire, we will start the engine and set the seat heating/ventilation to maximum for at least 5 minutes, confirming significant temperature changes or airflow output in the cushion and backrest using an infrared thermometer or body sensor.