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玻璃开孔器磨珠子
钢化玻璃开孔的规定
钢化玻璃开孔的规定 1. Minimum width of glass containing holes that can be satisfactorily tempered is eight times the thickness of the glass. （只有宽度大于 8 倍厚度的钢化玻璃才 能钻孔。） 2. The distance from any edge of glass to nearest point on rim of hole must be at least 1.5 times the thickness of the glass on glass that is 12mm or less in thickness and at least 2 times the thickness of the glass that is over 12mm in
