作者: Roger Ben Paddick
DOI:
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摘要: The tool is a device including threaded fastener 1 for threadable insertion into wall plug 21. A shaft 5 coupled to the and handle 9 slidably received on shaft. Stops 11, 13 are arranged limit movement of between first position second mutually configured such that relative motion them limited purely linear motion. may include weight increase percussive force. simple, one-handed operation be achieved by user using rotate/drive then same pull from substrate as 23.