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Green Steel
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Affival
Tecnosulfur
Opta Industrial Minerals Group
QUAB Chemicals
Opta Glass
Solutions
Hot Metal Desulfurization
Slag Conditioners & Fluxes
Cored-Wire Treatment
Aluminum Casting Flux
Engineering & Equipment
Foundry (iron, steel, copper, aluminum)
Detection & Optimization Technology
Al Deox Briquettes
Metallurgical Consulting
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Opta Worldwide
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Contact
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