... window glass is generally 3 to 5 times stronger than annealed glass and twice as strong as heat strengthened glass of ... dark grey etc.d) Pattern, clear float glass, tinted glass, low-e glass, reflective glass etc.e) Edge flat edge, chamfering, ... cutouts Quality standardCCC certificate, conform to EN12150 BS6206 NZS2208 ANSI z97.1 standardsApplicationWindows and doors, building glass curtain wall ...