Assertion: resistance furnace | /r/HasProperty | built as crucible furnaces
Facets:
value: with a metal crucible
type: OTHER
value: with an external heater
type: OTHER
Source sentences:
text: Indirect-heat resistance furnaces that are used to melt fusible metals—for example, lead, babbitt metal, aluminum alloys, or manganese alloys—are built either as crucible furnaces with a metal crucible and an external heater or as reverberatory furnaces with a bath