| 摘要 |
PURPOSE: A mask for a pig using a pressure ring and a band is provided to form a partial mask in the front of the nose of a pig. CONSTITUTION: A mask for a pig using a pressure ring and a band comprises a front mask(10) and a filter mask(11). The pin comes out of silicon spread in the pressure ring and restrains movement by suppressing the rear of the mouth. Magnets are inserted into the right and left of the pressure ring. A case is projected from the pressure ring.
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