COAL ENGINEERING ›› 2014, Vol. 46 ›› Issue (1): 102-104.doi: 10.11799/ce201401032

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Expand head bolt maximum pull-out force calculation formula is discussed and analyzed

  

  • Received:2013-01-16 Revised:2013-04-09 Online:2014-01-10 Published:2014-01-10