Answer:

smelters

Answer	Crossword Clue
SMELTERS	Ore processors
SMELTERS	Metal refineries
SMELTERS	Gary sights

SMELTERS	Ore refineries
SMELTERS	Ore processing plants
SMELTERS	Ore refiners
SMELTERS	Refiners
SMELTERS	Bessemer factories

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.