Drilling process and drilling tool for connecting hole of corner box of crane
The invention provides a drilling process and a drilling tool for a connecting hole of a corner box of a crane. A to-be-process corner box of the crane is arranged on a lifting platform, a drill plate is driven by a drill plate lifting device to lift up, the to-be-process corner box is positioned th...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
01.12.2017
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Subjects | |
Online Access | Get full text |
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