Assertion: malleable iron | /r/CreatedBy | prolonged heat treatment
Facets:
Source sentences:
text: Both are brittle, but a malleable cast iron produced by a prolonged heat treatment was developed in France in the 18th century, and a cast iron that is ductile as cast was invented in the United States and Britain in 1948.
text: Both are brittle, but a malleable cast iron produced by a prolonged heat treatment was developed in France in the 18th century,…