1. thermal shock no less than 600c 2.green and healthy 3. safe in the oven Advantages of the High Borosilicate glassware:1 chemical stability,lower expansivity; heat resistant(less than 800 degree)2 Excellent resistance to water, acid, alkali, corrosion; can't absorb food odor 3 Heat-resisitant can reach over 120 degree,never be distortedunder long-term heated or frozen4 Green,healthiness , ...