... Car Wash Machine Automatic Tunnel Car Wash Machine tunnel car wash is used to carry out the hi-pressure wash, agent wash, brush wash, wax ... and various minibus. After a vehicle is sent into the wash room by conveyor, it first rinses away tiny grit and dust ... Adopting the advanced high pressure system.9. High pressure pre-wash, agent wash, brush wash, spraying wax, drying and polishing in one turn.