combination drum-type mechanical mixers and aggregate driers for use in mixing, blending and commingling aggregate, sand, cement, and other components and ingredients of asphalt and concrete construction materials, and associated structures and control units, for use in the manufacture and processing of asphalt and concrete construction materials

'aggreg':8,17 'asphalt':26,45 'associ':32 'blend':14 'cement':19 'combin':1 'commingl':16 'compon':22 'concret':28,47 'construct':29,48 'control':35 'drier':9 'drum':3 'drum-typ':2 'ingredi':24 'manufactur':41 'materi':30,49 'mechan':5 'mix':13 'mixer':6 'process':43 'sand':18 'structur':33 'type':4 'unit':36 'use':11,38

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