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Cheap sound insulation commercial aluminum three rail double glass sliding doors on China WDMA Sliding Window We do not have aProduct Information Profiles 1. 6063 T5 high quality thermal break aluminium profile, thickness 2. 0 mm 2. 6063 T5 high quality non thermal break aluminium profiles,thickness 2. 0 mm Colour Customized: 1. matt black,white, ultra sllver,clear 2. anodized,nature clean aluminum Glass 1. Double toughened glazing: 5mm+12A+5mm (A: Air); 5mm+12A+5mm tinted; 5mm+12A+5mm Low E; 5mm+27A+5mm 2. Single toughened glazing: 3 4 5 6 8 10 12 15 19 21 6. 38 11. 76mm 3.