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Washing rising gases - by pressurised transverse liq. sprays from annular jets at intervals up column
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Method and apparatus for acid-polishing glass objects
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Method and device for acid polishing glass objects
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Process for polishing preground surfaces on workpieces of glass
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Plastic centrifugal fan impeller - consists of discs sandwiching blades and connected by screws with exposed ends sealed by plastic discs
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Stable air purifying plant - has hydrochloric acid added to ammonia as neutraliser in washing water
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Purificn of gaseous effluents from acid glass-polishing - plant - by scrubbing with sulphuric acid
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Acid polishing glass sludge - is removed and separated from tank bottom
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PUMP ESPECIALLY FOR PUMPING AGGRESSIVE LIQUIDS FROM A CONTAINER
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Glass etching - by acid jets
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Acid polishing glass using ultrasonics
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