Things which allow heat to pass through them are called good conductors of heat.things which do not allow heat to pass through them are called bad conductors of heat.good conductors-metal steel brass etc. Bad conductors of heat-plastic wood etc.
Good conductors of heat are all metals and bad conductors of heat are wood,fiber,plastic,timber etc...
Good conductors of heat are copper, aluminium, iron, silver, lead, tin, gold, platinum, nickel, steel, brass,. And metal