| 摘要 |
PURPOSE:To facilitate the handling of a nonskid instrument and improve its endurance by forming the body of the instrument of ceramics. CONSTITUTION:A body section 2 comprises ceramics make rings 4 combined with each other lengthwise and breadthwise. The rings 4 are formed with disconnecting sections respectively so as to be combined with each other. And after being combined with each other, metallic coupling rings 5 are engagedly secured at each disconnecting section. This constitution serves to lighten a captioned instrument, facilitate its handling and improve its endurance.
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