sentence: Metallurgists work to make the metal good when they are used.
sentences_before: Another part of metallurgy is making parts from metals. These parts must be made so they will not break when they are used.
sentences_after: Sometimes the metal must be strong. The metallurgist must follow directions when making the part to know what metal to use. Steel has a low cost, but rusts. Choosing a good metal is sometimes hard.
concept_name: metallurgist
headings: Metallurgy Metal parts
categories: Technology