railroad spike

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Railroad spikes：The spike is mainly used for the connection of rail or pad and wooden pillow, which is a fastener for connecting rail and sleeper or pad and sleeper.It is usually divided into five kinds: ordinary spike, frost damage screw, thread spike, spring spike, screw spike.With the technology of hot rolled steel, the shape of the lower part of the nail and the shape of the rail bottom are suitable.The surface of the nail rod is clean, and there is no crack in the joint of the nail head and the nail, and the tip has no burrs and folds.There is no bubble in the surface of the spike, and the cracks are used in the coal mine and road transportation.

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