速动螺旋
The utility model relates to a saw capable with quick replacement of a saw blade, which comprises a saw handle, a saw blade, a screw bolt and a handle.
本实用新型涉及一种可速换锯片的锯,包括有锯柄、锯片、螺栓和手柄。
Quick method of rehabilitation of tooth crown fracture with resin tooth product and screw thread root canal spile
螺纹根管钉和成品树脂牙作快速桩冠修复
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