Bimetal Trimetal Contacts are the most popular kind of contacts. They are made of two or three different metals and have a high resistance to corrosion. The two most common types of bimetal trimetal contact are nickel silver and copper-nickel. Nickel silver has a higher resistance to corrosion than copper-nickel, but copper-nickel is more resistant to wear and tear We Are Manufacturer Supplier and Exporters of Tungsten Contact Electrical in India. For More Details Visit : https://rselectro.in/ For any Enquiry Call Rs Electro Alloys Private Limited at Contact Number : +91 9999973612, For Sales Enquiry Email at : [email protected]