タイトルまたは説明

Tempered glass is heat-glass processed by heating annealed glass to the softening point and then quenching it by uniform blast of air evenly to both surface The tempered glass is subjected to a special heat-treatment of about **0 degree and afterwards cooled .If it is cooled rapidly, the glass is up to 4 times stronger than before. When it gets broken it chatters into many small fragments which will not lead to major injuries. It can be used in the constructions, automobile, train, ship, furniture, automatic door, escalator, microwave oven, refrigerator, etc.