Lifting tools can be used alone or in combination. Some light and small lifting equipment have a large lifting capacity, such as the hydraulic jack has a lifting capacity of 750 tons. Mine hoists and hopper elevators are mainly used for vertical or near vertical lifting movements with a fixed lifting path. The overhead monorail system has lines formed by rigid hanging rails that can transport materials to various parts of the plant or to the exterior of the plant.
Chisels are classified in different shapes according to different uses:
Flat chisel: the cutting edge is flat, the cutting edge and the chisel body is an inverted isosceles triangle, mainly used for opening square holes or repairing some square holes;
Oblique chisel: the blade is 45° Angle, the blade and chisel body is an inverted right triangle, mainly used for repair, most of the dead corners for carving and carving repair;
Gouge: the cutting edge is semicircular, mainly used for opening circular or elliptical holes;
U type chisel: the cutting edge is U-shaped, which is rare now, mainly used for carving and repair;
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