... standard EN572-2, European standard Color: bronzeThickness: 4mm, 5mm, 5.5mm, 6mm, 8mmNormal Sizes: 1524x2134, 1600x2400, 2140x1650, 3300x2140, 3300x2250 ... ReflectanceTotal Solar TransmittanceShdowing Coffecient (SC)RHGEuro Bronze6 mm20.45%16.32%2.03%29.70%14.85%43.08% ... on glass manufacturing and exporting.2. Top quality glass with CE certificate, exporting to more than 60 countries in the world ...