BITUMEN COATS, PRESENTLY ELASTICALLY MODIFIED BITUMEN COATS AND POLYMERBITUM COATS
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机译:沥青大衣,目前下弹性改性沥青的大衣和POLYMERBITUM COATS
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摘要
The bituminous webs are characterised in that the impregnating and/or covering bitumen material used in their production contains a proportion of synthetic silica. The synthetic silica can be precipitated or pyrogenic silica.
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