What color is good for tunnel feng shui pipe brush?

Red and white. The high-pressure water pipes on the upper, middle and lower floors of the excavation steps should be distinguished by different colors, and red and white warning paint should be painted on the feng shui pipes and steel plate brackets, and the feng shui pipes in the tunnel should be painted red and white, which is very eye-catching. Pressure pipeline refers to the tubular equipment used to transport gas or liquid under a certain pressure.