A pipe cutting machine shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder. Alligator shears are generally set up as stand-alone shears; however, there are types for excavators. They are generally used to cut ferrous members, such as rebar, pipe, angle iron, or I-beams.
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On May 15, the first new shoreline with a circular special light house on the Yangtze River Main Line was put into use in Nanjing Longtan Port Area (see the picture below). It is reported that this is the largest reinforced concrete tower-shaped shore mark with the largest body, the highest degree of landscape and the most scientific content of the Yangtze River trunk.
According to the designers of the Yangtze River Channel Planning and Design Institute, the shore elevation is 39 meters, and multi-layer LED large-scale navigation lights are used on the tower standard, which greatly increases the lighting distance. The tower exterior wall is covered with new materials, which basically does not fade, and reduces maintenance. cost.