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Hot-rolled steel coils/plates are steels made by high-temperature heating and rolling. Its strength is not very high, but its plasticity and weldability are good. Hot rolling can improve the processing performance of metals and alloys, break the coarse grains in the as-cast state, heal cracks, reduce or eliminate casting defects, transform the as-cast structure into a deformed structure, and improve the processing performance of the paduan.
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