Electrode stem, bolt Material: T2; features: the product consists of long and thin poles on both sides and a large disk in the middle. After cold hardening of the poles, the abrasive resistance and the material utilization are increased. The product is applied for high-voltage electrical equipment. In the past, the product was welded. Liquid leakage may easily occur on the welding position in silvering of surface due to poor strength. -Application: applied in the key part of vacuum breaker of the high-voltage grid system -Client Problem: leakage may occur in slivering since the electrode poles are welded with two parts. In this way, the cost is high while the efficiency is low. -QH solution: based upon the research of technicians, QH designs overall pole, which completely solves the problem of leakage. -Benefits: high efficiency and low cost