4. C - Chemistry, Metallurgy
  5. 22
  6. B

David Eric Hall

C - Chemistry – Metallurgy – 22 – B

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Country: Canada

Conversion of non-ferrous matte

C - Chemistry – Metallurgy – 22 – B
Patent

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Conversion of non-ferrous sulfides

C - Chemistry – Metallurgy – 22 – B
Patent

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Method for refining non-ferrous metal

C - Chemistry – Metallurgy – 22 – B
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Tuyere injector

F - Mech Eng,Light,Heat,Weapons – 27 – D
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Profile ID: LFCA-PAI-P-1647408

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