Spark plug box spanner 火花塞套筒扳手
round nut box spanner 圆螺帽套筒扳手
box spanner socket 套筒扳手
square box spanner 方套筒扳手
Drilled Box Spanner 探针扳手
tubular r box spanner 管套筒扳手
round d nut box spanner 圆螺帽套筒扳手
variable hexagonal box spanner 可变六角套筒扳手
N a spanner consisting of a steel cylinder with a hexagonal end that fits over a nut: used esp to turn nuts in positions that are recessed or difficult of access 管钳子
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