Zirconiated wolframových elektrod

Trade mark

Added impurity

Impurity quantity %

Other impurity

Electric discharged power

Color sign

WZ3

ZrO2

0.20~0.40%

<0.2%

2.5~3.0

brown

WZ8

ZrO2

0.70~0.90%

<0.2%

2.5~3.0

white