硬こう鑞ろう

noun

hard solder

Technical term for solder with a high melting point, used in metalworking and plumbing. Contrasts with 軟鑞 (soft solder).

See also: 軟鑞

• 硬こう鑞ろうは高こう温おんで溶とけるので、銅どう管かんの接せつ合ごうに使つかわれる。

  Hard solder melts at high temperatures, so it is used for joining copper pipes.