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Single-cylinder bolt type telescopic boom hydraulic bolt interlocking device, has cylinder pins moved by plunger piston pushed by hydraulic oil, where movement path of cylinder pin locks is intersected with movement path of cylinder pins. 专利
申请日期: 2013-01-01, 公开日期: 2013-04-24
作者:  LIU B CAO X WANG X PAN Z SUN Y ZHEN
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