Newheek’s spring switch is driven by mechanical press rod. The switch component adopts “OMRON” micro-switch with longer service life and higher sensitivity. The x ray hand switch using “OMRON” micro-switch as component contact will not appear oxidation at all. The core of spring switch is 0.2 square copper wire, if the current is a little higher, it will not affect the spring switch. The outer skin of spring switch wire is corrosion resistant and has good tensile property. It won’t be deformed by pulling for a long time, and it won’t be as ugly as the telephone line used for a long time. The service life of the fretting spring switch is 5 times as long as that of the mechanical spring switch, reaching 1 million times, even if the electrical life is 100,000 times.