TungstenChina La203 Lanthanum Tungsten Electrode Wl10 (marked black color) , Wl15 (marked gold) , Wl20 (blue) Lanthanated Tungsten Rod/Electrode 3.2mmx175mm, Find details about China Tungsten Electrode, Lanthanum Tungsten Electrode for TIG Welding from La203 Lanthanum Tungsten Electrode Wl10 (marked black color) , Wl15 (marked gold) , Wl20 (blue) Lanthanated Tungsten Rod/Electrode 3.2mmx175mm