... pressstainless steel wires: high quality stainless steel wires.lamp frame: iron material with hot-dip galvanized, outside ... diffuser,featuring good transparency,heat resistance,uniform luminance sidtribution.Flat glass and optional drop lens changeable. Pole Material ... treatment. Standard:1.electric box protection level:IP232.Lamp protection level:IP65 Application:Highways,Interchanges,Ports,Rail yards ...