| ·Single platinum rhodium 30-platinum rhodium 6 WRR-121 | [1970-01-01] | |
| ·Double platinum rhodium 30-platinum rhodium 6WRR2-120 | [1970-01-01] | |
| ·Double platinum rhodium 30-platinum rhodium 6WRR2-120 | [1970-01-01] | |
| ·Double platinum rhodium 30-platinum rhodium WRR2-121 | [1970-01-01] | |
| ·Single platinum rhodium 10-platinum WRP-120 | [1970-01-01] | |
| ·Single platinum rhodium 10-platinum WRP-121 | [1970-01-01] | |
| ·Double platinum rhodium 10-platinum WRP2-120 | [1970-01-01] | |
| · Double platinum rhodium 10-platinum WRP2-121 | [1970-01-01] | |
| ·Single NiCr-NiSi WRN-122 | [1970-01-01] | |
| ·Single Ni-Cr-Ni-Si WRN-123 | [1970-01-01] | |
