Specifications:1) Lanthanated tungsten electrode attracts close attention and becomes popular ; Lowest erosion rate,wide current range,no spitting, best DC arc starts and stability; generally used to weld carbon and stainless steels, nickel alloys and titanium 2) Color mark: WL10 (black), WL15 (gold), WL20 (sky blue) 3)Diameter:1.0mm - 10.0mm, 0.040" (1.0mm), 1/16" (1.6mm), 3/32" (2.4mm), 1/8" (3.2mm) and 5/32" (4.0mm) 4) Length: 6'' (150mm), 7''(175mm) 5) Quality of surface: ground finish We can make different kinds of diameter and length tungsten electrodes according to clients' requirement.