... tear down, durable, light weight stage Trussing is made of aluminum alloy 6061T6.Main tube 50*3/4mm, brace 25*2mmNomal ... is made up by 18mm thickness pilwood or transparent and aluminum frame with high hardness, esay to assemble and fold. 4 ... stage board, stage frame, stage brace and other accessories called aluminum stage show . 2011 new stage Trussing