For over three decades, ZHNYU Electric has been at the forefront of low-voltage electrical component innovation, and our Single Pole Knife Switch is a manifestation of this expertise. Since our inception in 1992, we have dedicated ourselves to the research, development, and production of high-quality switching devices, establishing a comprehensive quality management system aligned with ISO9001 standards. Our modern facility in China covers 10,000 square meters and houses more than 100 advanced production machines, including automatic stamping presses, precision injection molding, and robotic assembly lines, enabling us to achieve a monthly production capacity of over 120,000 units. This scale not only ensures cost-effective manufacturing but also guarantees consistent quality, as each unit undergoes rigorous automated testing for contact resistance, insulation resistance, and dielectric withstand.