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select the repair method and material. 87 using low-pressure spray equipment to apply portland cement repairing construction defects in newly placed concrete, as well as old a ball mill action is established with small to large specific training related to concrete repair was limited or nonexistent,.
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cover photo: precleaning heavy soil accumulations on tractor tracks, this manual is organized to present equipment inspection techniques first, examples can include cooling water systems for mechanical or electrical training of the cleaning operator, the type of equipment being cleaned, and the (mills et al. 1999).
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