... electrode for gas discharge tube WAL3Used for grid side rod, support, lead and electrode for gas discharge tube ... W1,W2Used for grid side rod, support, lead andDiameter: (17mm+/-0.3)*(500-780mm ... , straighten, burnish, rolling We look forward to receiving your comments and inquiries, and hope to build a long- ... you in the future. tungsten bar/tungsten rod , tungsten shaft