... 3.trusss section:300x300mm,etc 4.wedding roof truss,lighting truss new design screw truss detail: Truss Material: Aluminium6061-T6 ... design diverse shapes to hang acoustics,speaker, lighting and so on.Features:Lighting truss hanging lights,loud speaker.Suitable for displays ... *450*2150026 Our company main products:aluminum truss,stage lighting truss,bolts truss,spigot truss,aluminum stage,glass stage, ...