KF crosses (glass)

| KF crosses (glass) | |||||
| NW | A | B | |||
| 10 | 40 | 80 | |||
| 15 | 40 | 80 | |||
| 25 | 50 | 100 | |||
| 40 | 65 | 130 | |||
| 50 | 70 | 70 | |||
| 63 | 75 | 75 | |||
| Type NW | Duran® | Quartz | |||
| 10 | 33.010007.171.710 | 33.010008.171.810 | |||
| 16 | 33.016007.171.716 | 33.016008.171.816 | |||
| 25 | 33.025007.171.725 | 33.025008.171.825 | |||
| 40 | 33.040007.171.740 | 33.040008.171.840 | |||
| 50 | 33.050007.171.750 | 33.050008.171.850 | |||
| 63 | 33.063007.171.763 | 33.063008.171.863 |