| 摘要 |
PURPOSE: An abrasive for a Liquefied Natural Gas tank is provided to improve precision degree of grinding by preventing shaking when the abrasive is rotated. CONSTITUTION: An abrasive for an LNG tank is installed in one end of a rotating shaft, and rotated. The abrasive is formed in a circular truncated cone shape. A fixing hole(20) is formed inside the abrasive of the circular truncated cone shape. The rotating shaft is inserted into the fixing hole.
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