jīn​yín​tóng​tiě​xī

the five metals

  1. metal
    a generic term for metals; metallic substances
  2. silver
    silver; the chemical element Ag; (bound form) something made of silver or containing silver particles
  3. copper
    copper (chemical element Cu); also used to refer to bronze and other copper alloys
  4. iron
    iron (Fe); the metal used for making steel and tools
  5. tin
    tin (chemical element Sn); silver-white metal with high malleability, used in plating, soldering, and alloys