the aluminium square spigot  truss /spigot truss/stage truss/light truss/project truss which is connector by the spigot , it  is very popular at market , Especial at Europe market , The spigot truss which main characteristic is use of easy ,quick building, stronger loading capability . Which main to use for move  performances, ceremonies, the indoor exhibition planes, the studio,Studio, press conferences,hanging lights, product fairs, exhibition halls display, and other structures need to meet a variety of projects.

The 290*290mm stage  truss main tube is 50*3mm tube ,brace tube is 25*2mm , the length on 0.5-4m , the alloy materila is 6082-T6  .