External corner back arris device of combined template
The utility model discloses an external corner back arris device of a combined template. The structure comprises an external corner plate and a back ridge plate, springs are fixedly installed on the inclined faces of the external corner plates, the external corner plates are fixedly connected with t...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
02.08.2019
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Subjects | |
Online Access | Get full text |
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