Profile: Relay Service Company. is a provider of relays and switches. We also offer Ac buzzers, switches, coil winding and plug socket enclosures. We produce electro-mechanical relays and it includes dual-coil latching, impulse latching, actuating, coin blocking and accepting, wire form & current sensing. Our services include light assembly, riveting and contacting. Our switch includes mechanical leaf switch, type T switch and type GS switch.