Material:Borosilicate GlassGrinding Mouth:14/10,14/20,14/23,19/22,19/26,24/29,24/40,29/32,29/42,34/45,45/50
1. High borosilicate glass;
2. Low expansion rate, high strength, high hardness, high temperature resistance and 200�� temperature difference;
3. High light transmittance, high chemical stability, acid and alkali resistance.
4. Manual fine grinding, fine grinding, good sealing;
5. High processing precision and good adaptability.