Tact Switch, Phone Jack, DC Jack manufacturer / supplier in China, offering High Quality The Switch Manufacturer Supplies 4-Pin Patch with Fixed Column Horizontal Type Push-on Spst Switch SMD Type Tact Switch for Security Products, Good Quality Micro Hook Switch Witch Blue & White Color for Telephone, 3.0 Spacing 4p Vertical Patch Thickness 3.0bc Battery Base Bc-N30-4p and so on.