发明授权
US08881361B1 Methods of repairing a rotary drill bit 有权
修理旋转钻头的方法

Methods of repairing a rotary drill bit
摘要:
Embodiments of the invention relate to superabrasive compacts including multiple superabrasive cutting portions and methods of repairing a rotary drill bit that employs at least one of such superabrasive compacts.
信息查询
0/0