Modison Group of Companies manufactures Silver Tungsten and Silver Tungsten Carbide Contacts. Modison Group of Companies is an ISO 9001:2000 certified company. Silver Tungsten and Silver Tungsten Carbide Contacts are also characterized by their high strength and their resistance to welding or sticking. The contacts are principally made by infiltration and the nominal silver content varies from 20-50%. Silver Tungsten and Silver Tungsten Carbide Contacts exhibit initial resistance to formation of surface films and possess good anti-weld and arc erosion resistance. These are specially used for devices requiring more consistent mill volt drop as compared to silver tungsten.