1) resistant to heat ,corrosion and scratch 2)can be used in microwave oven,dish washer, icebox 3) FDA, LFGB 4)16cm,20cm,24cm

1)material : borosilicate Glass ; expansion coefficient : 3.8*10-7k

2) resistant to heat up to 800celcius degrees,corrosion and scratch

3) can be used in microwave oven ,oven ,dish washer and freezer.

4) we have 16cm, 20cm, 24cm, 26cm, 28cm, for the round glass lid.

5) Besides ,we can also develop new designs for you according to your request.