Products features:

1.Obey the latest national school bus standard

2.Waterproof up to IP54,Suitable for outside application.

3.3M tapetum lucidum up to GB/T 18833 II Grade,following thelatest national school bus standard

4.Using 4MM Aluminum alloy sheet and Anti-UV engineeringplastics protect the signs from destroyed outside

5.Electrophoresis process,work with high quality paint andstainless steel screw to protect the signs from corrosion on theoutside working condition.

6.Adopt patent Clutch mechanism,can support 80k times moreelectrical rollover,and more than 1K times'' hand rollover.

7.Stick automatic,keep stable under any traffic situation.