Tungsten electrode 1. WP, WT10, WT20, WT30, WT40, WC20, WZr3, WZr8, ... , WL20 2. Diameter:1.0 - 12.0mm 3. 150, 175mm Tungsten electrode 1. Item: WP, WT10, WT20, WT30, WT40, WC20, WZr3 ... . Quality of surface: ground finish. DESIGNATI COLOR SIGH CONTENT % IMPURITY % TUNGSTEN % LENGTH (mm) DIA. (mm) WT10 YELLOW 0.9-1.2 ...