打铁

打铁	dǎ tiě	to forge ironware
打	dá	(loanword) dozen / Taiwan pr. [da3]
打	dǎ	to beat / to strike / to hit / to break / to type / to mix up / to build / to fight / to fetch / to make / to tie up / to issue / to shoot / to calculate / to play (a game) / since / from
铁	Tiě	surname Tie
铁	tiě	iron (metal) / arms / weapons / hard / strong / violent / unshakeable / determined / close / tight (slang)