Single hole copper electrodes tube

Single hole copper electrodes tube 0.3*400mm $ 5.880 tube(100pcs/tube) Single hole copper electrodes tube 0.4*400mm $ 5.880 tube(100pcs/tube) Single hole copper electrodes tube 0.5*400mm $ 5.880 tube(100pcs/tube) Single hole copper electrodes tube 0.6*400mm $ 5.880 tube(100pcs/tube) Single hole copper electrodes tube 0.7*400mm $ 5.880 tube(100pcs/tube) Single hole copper electrodes tube 0.8*400mm $ 5.880 tube(100pcs/tube) Single hole copper electrodes tube 0.9*400mm $ 5.880