An alloy composed primarily of copper and nickel, often used in coins and metal products.

तांबे-निकेल का मिश्रण

English Usage: The new coins will be made from a copper nickel alloy to enhance their durability.

Hindi Usage: नए सिक्के तांबे-निकेल के मिश्रण से बनाए जाएंगे ताकि उनकी ताकत बढ़ सके।