specialized in kitchen utensils，was established in 1993. Our glassware is made of high borosilicate glass, which could be used in conventional oven, microwave oven, refrigerator, freezer and dishwasher. The existence of 14% boron and 80% silicon contributes to low thermal expansion (3.3士0.1 ×10ˉ6Kˉ1) and good thermal conductivity.