coring bit
短语词组
- coring cone bit 牙轮取心钻头
- coring g bit 取芯钻头
- PDC non coring drill bit PDC 无心钻头
- hard metal coring bit 硬质合金取心钻头
- coring bit with diamonds 金刚石岩心钻头
- non -coring bit 不取心金刚石钻头
- percussive coring bit 冲击钻探取心钻头
- coring bit breaker 取心钻头装卸器
- reverse circulation coring bit 反循环取心钻头 返回 coring bit