... 6m) 3.color is optional 4.AC /DC traffic fence barrier,Parking barriers,Safety barriers,Security barriers,BS ... is widely used for the facilities of parking, traffic or toll system.2.Arms can be chosen ... meters. 3.This type of barrier could match with direct boom( pole), fold boom Or fence boom ... opener since 1998.3.Our main products are traffic barrier,garage door opener,swing gate operator,sliding gate ...