... Glass options1) Type: clear,tempered,reflective,coated,decorative,floated,Low-E glass etc.2) Thickness: single glazing /double glazing /triple ... 0. 5 m 3 /h. M5) Watertightness: 700 PaProduct features1) Air proof,Water proof,Sound insulation,corrosion-resistant2) Availability in variety ... you to open up your home to fresh air and sunshine while gaining easy access to your garden, patio or balcony.11 ...