真しん鍮ちゅう鑞ろう

noun

brass solder; copper-zinc brazing alloy

A specific brass alloy with roughly 33–67% zinc, used for brazing or soldering metals such as copper and iron. Technical term; not everyday vocabulary.

• 銅どう管かんの接せつ合ごうには真しん鍮ちゅう鑞ろうが使つかわれる。