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Method of casting metals and metal alloys
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METHOD AND APPARATUS FOR SEPARATING THE SOLID PHASE FROM ZINC SULFATE SOLUTIONS IN THE REMOVAL OF THEIR CONTAMINATES
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Casting metals or alloys - with vacuum degassing before and during casting and pressurisation of the cast metal during solidification
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Casting
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Vacuum/pressure quality casting prodn. - by tiltable ladle and mould in sealed chamber at vacuum followed by pressure
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Method of stiffening the flotation sludges
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Method of hardening of flotation wastes
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