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Process for producing triethyl benzyl ammonium chloride in aqueous solution
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Method for preventive protecting building woods against fungus-parasites
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Process for producing flux fopr concrete
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Dispersion composition of silicate powder for concrete-additives
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Self-purifying wall paint having high humidity permeability
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Roof covering for new or defective flat roofs
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Method for producing bitumen plates
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Process for producing roof panels
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