Heat treatment method of unidirectionally-warped and bent-downwards steel plate
The invention discloses a heat treatment method of a unidirectionally-warped and bent-downwards steel plate, which comprises the following steps of: manufacturing a group of lantern rings according to the size of the last roller way of charging roller ways of a heat treatment furnace, wherein the in...
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Format: | Patent |
Sprache: | chi ; eng |
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