[Medium glass] 1. The standard thickness of tempered glass is 3.2mm, and the allowable deviation is 0.2mm.
2. The size of the tempered glass is 1574*802mm, the tolerance is 0.5mm, and the deviation of the two diagonals is 0.7mm.
3. The tempered glass is allowed to have a length of not more than 10 mm per meter side, and the depth from the edge of the glass to the surface of the glass plate is not more than 2 mm, and the edge of the glass extending to the other side of the glass does not exceed one third of the thickness of the glass.
4. Condensed air bubbles with a length less than 1mm are not allowed inside the tempered glass. For air bubbles with a length greater than 1mm but not more than 6mm, no more than 6 airbags per square meter.
5. No stone, cracks or corners are allowed.
6. The transmittance of tempered glass in the visible light range is not less than 90%.
7. The surface of the tempered glass is allowed to have a width of less than 0.1 mm per square meter, and the number of scratches with a length of less than 50 mm is not more than 4, and the width of each width of 0.1-0.5 mm per square meter is less than 50 mm.
8. The tempered glass is not allowed to have wave bending. The bow bending is not allowed to exceed 0.2%. According to GB/T9963-1998, 4.4, 4.5, 4.6, the number of pieces must exceed 40 in the area of ​​50mm*50mm.
The leather base is all there
Pu Leather,Pu Leather Fabric,Embossed Pu Leather,Pu Fabric Leather
WENZHOU JOVAN INTERNATIONAL COMMERCIAL , https://www.wzjovan.com