Just 500 mm Heavy Duty Pro-30 Square G Truss. The Pro-30 heavy-duty truss offers excellent span and weight load characteristics and is well-equipped for use in medium to large applications. It is ideal for spans of up to 20 m. Made from certified 48 x 3 mm thick aluminum alloy tubes with 16 x 2 mm braces. Each length features a durable construction with a diagonal twist lock. The heavy-duty truss is available in aluminum color or powder-coated in black, RAL 9005. Both colors are also available as Prolyte-compatible F-beams or Global/Euro-compatible G-beams. Since the spring bars are standard in Pro-30 design, you can easily combine the heavy-duty truss with your current truss.