ALUMINIUM SQUARE TUBES 25mm x 25mm x 1.5mm with 20mm x 20mm x 1.5mm inner
ALUMINIUM SQUARE TUBES. INNER SQUARE TUBE 20MM x 1.5MM. A = inner tube 20mm T = 1.5mm. OUTTER SQUARE TUBE 25MM x 1.5MM. A = outer tube 25mm T = 1.5mm. ALUMINIUM IS PRODUCED TO BS EN 755-9. STANDARD MANUFACTURERS TOLERANCES APPLY.