| ·Single NiCr-CuNi WRE-120 | [2020-03-30] | |
| ·Double NiCr-NiSi WRN2-120 | [2020-03-30] | |
| · Single NiCr-NiSi WRN-120 | [2020-03-30] | |
| ·Single NiCr-NiSi WRN-122 | [1970-01-01] | |
| ·Single Ni-Cr-Ni-Si WRN-123 | [1970-01-01] | |
| ·Double NiCr-NiSi WRN2-122 | [1970-01-01] | |
| ·Double NiCr-NiSi WRN2-123 | [1970-01-01] | |
| ·Single platinum rhodium 30-platinum rhodium 6 WRR-130 | [1970-01-01] | |
| · Single platinum rhodium 30-platinum rhodium 6 WRR-131 | [1970-01-01] | |
| ·Double platinum rhodium 30-platinum rhodium WRR2-130 | [1970-01-01] | |
