| 摘要 |
A device for cutting and excavating soils, concrete, asphalt and road surfaces and subsurfaces. The Vertical Asphalt & Concrete Miller is mounted on various types of construction equipment such as a back hoe. The construction equipment normally provides hydraulic fluid to drive the rotary cutting head. Several configurations of replaceable cutting bits are used depending upon the material to be cut. One specific cutting head is a coring bit used to cut the concrete or asphalt around manhole castings, water valves and monument boxes.
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