China Merchants Bank. China Merchants Bank ETC users can enjoy a maximum discount of 20%, and get a maximum monthly cash back in 500 yuan. ETC users of China Merchants Bank can also enjoy free parking service, which is very convenient. ETC is a non-stop electronic toll collection system, and ETC lanes are used for vehicles equipped with ETC on-board equipment. Electronic toll collection is adopted, short-distance microwave communication between the vehicle-mounted electronic tag installed on the windshield of the vehicle and the microwave antenna on ETC lane of the toll station is used, and computer networking technology is used for background settlement with the bank, so that the vehicle can pay the road and bridge toll without stopping at the road and bridge toll station.