Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 651
iitimi N Gi … Heavy Du^l Remixes Concrete W^hen materials have passed through mixing processonce, and come to discharging side of the drum,the reversed discharge chute sprays them back tothe charging side for repeated trips through the 5-action, remixing process. This spraying-showeringaction, at the same time…
Architecture · Building · Construction industry · Engineering
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