| Specification | Composition Ratio |
| Item No. GB2392-3-DD1 | Silica(SiO2) 73.5% |
| Top Dia. 11 inch | Sodium Oxide (Na2O) 13.16% |
| Height 20 mm | Calcium Oxide (CaO) 9.48% |
| Bottom Dia. mm | Boron Trioxide (B2O3) 1% |
| Capacity 11INCH | Alumina (Al203) 3.21% |
| Package 24pcs/ctn | Ferric Oxide (Fe2O3) 0.1% |