As it's conveniently and simply constructed by the long frame, the finger gap is more desified than that of the existing joint. It features the no penetration of alien matters. It blocks the vehicles during the repair and maintenance. As the exposed side is designed in hard-steel structure, it features the durability, evenness, driving efficiency.
Its angle is balanced according to the angle of curved bridge. In addition, long finger can be manufacutred. It fits for the long and huge bridge.
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