1. Single NiCr-NiSi WRN-420
2. Single NiCr-NiSi WRN-420A
3. Double NiCr-NiSi WRN2-420
4. Single nickel-chromium-copper nickel WRE-420
5. Single nickel-chrome-copper nickel WRE-420A
6. Double NiCr-CuNi WRE2-420
7. Single NiCr-NiSi WRN-430
8. Double NiCr-NiSi WRN2-430
9. Single NiCr-CuNi WRE-430
10. Double NiCr-CuNi WRE2-430 TAG：