... 300*300mm. Material is 6061-T6 or 6082-T6. Main tube is 50*3mm, the brace is 25*2mm. Wedding ... Material is 6061-T6 or 6082-T6. Main tube is 50*3mm, Vice tube is 35*2mm, Brace is 25*2mm. Cinemas ... T6 or 6082-T6. Main tube is 50*3mm, Vice tube is 50*2mm,Vice tube is 50*2mm,the brace is ... 2mm. For big show or larger scale concerts.(4)Tubes: Single Tube, I-Beam Truss, Triangular Truss, Square Truss.Truss and ...