... tproject truss,ent truss,lighting truss,stage truss,Aluminum truss,roof truss, aluminum truss,stage truss ,exhibition truss, lighting ... bolt truss ,layer truss , speaker truss ,spigot truss1.ALUMINUM STAGE TRUSSTriangle truss & square trussScrew truss & spigot trussTruss system is ... out door celebration and so on. 2.ALUMINUM STAGE TRUSS 1.>Lighting truss/tower truss/stage truss adopt 6082-T6 which ...