Products Feature1.Our school bus stop signs obey the latest national school bus standard.2.Waterproof up to IP54, suit for outside application.3.3M tapetum lucidum up to GB/T18833 II Grade, following the latest national school bus standard4.Using 4MM Aluminum alloy sheet and Anti-UV engineering plastics protect the signs from destroyed outside5.Electrophoresis process?work with high quality paint and stainless steel screw to protect the signs from corrosion on the outside working condition.6.Adopt patent Clutch mechanism,can support 80K times more electrical rollover, and 1K times more hand rollover.7. Stick automatic, keep stable under any traffic situation