Question

copper and brass are covered with tin . this is called​

Answer 1

Explanation:

The art of kalai (kalhai or qalai) is the process of coating an alloy surface such as copper or brass by deposition of metal tin on it.

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process is known as Tinning

Answer 2

$\color{Cyan}{The art of kalai}$

The art of kalai (kalhai or qalai) is the process of coating an alloy surface such as copper or brass by deposition of metal tin on it. People practicing the art of kalai are called Kalaiwala or Kalaigar. ...

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