脱だっ錫しゃく

noun

detinning; removal of tin and copper

Rare technical term used in metallurgy and recycling contexts.

• 脱だっ錫しゃく処しょ理りは金きん属ぞくリサイクルの工こう程ていの一ひとつです。

  Detinning treatment is one of the processes in metal recycling.