one side one trestle,double side double trestle for you to choose.

Characteristics:

Excellent intension prevention ,long service life and good reflection capability.                                              

Usage:Be used as roadside sign for road,brige,tunnle,circuity road, ,can fastnessly fixed on the profile guard rail,the reflection light

is uniformity and undazzled at night,especially in montane road,curve place and curved area ,may greatly reduce the traffic accident

occurs.