Product specification

• 1)58mm diax1800mm length: ETC 20 Tubes 2)Mounting Frame: 1.8mm Alu alloy 3)Insulation: 50 mm Polyurethane 4)Vacuum Tube: Borosilicate glass 3.3 5)Seal Material: UV stabilized HTV silicon rubber 6)ETC Tube Impact Strength:>25mm dia hail