कालायसताम्रवृत्तकंससीसत्रपुवैकृन्तकारकूटानि लोहानि ॥ कZ_०२.१७.१४ ॥
kālāyasatāmravṛttakaṃsasīsatrapuvaikṛntakārakūṭāni lohāni
Metals include black iron, copper, vṛtta, bronze (kaṃsa), lead, tin (trapu), vaikṛntaka, and kārakūṭa.
Metals underpin coinage, weapons, tools, and public works; specifying types supports standardized valuation, procurement contracts, and workshop audits.