发明名称 A METHOD OF ENCASING A YIELDING ROCK BOLT SHAFT
摘要 <p>A method of encasing a solid shaft (10) to be used in a yielding rock bolt which comprises passing a de-bonding sheath (18) through a mechanical feed means (14) and feeding the de-bonding sheath (18) onto the shaft (10). The shaft (10) is preferably mounted into an externally threaded end (12) which engages with a threaded stopper (16).</p>
申请公布号 WO2010009506(A1) 申请公布日期 2010.01.28
申请号 WO2009AU00938 申请日期 2009.07.24
申请人 GARFORD PTY LTD;HEDRICK, NEVILLE 发明人 HEDRICK, NEVILLE
分类号 B21D49/00;E21D21/00 主分类号 B21D49/00
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