Sagger bottom with expansion slot
The utility model relates to a sagger bottom with an expansion slot. In the using process of the prior sagger, heated abrasive material breaks the sagger body. As a result, the whole sagger can not be used and economic loss is caused. Aiming at the defects, the utility model discloses the sagger bot...
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Format: | Patent |
Sprache: | chi ; eng |
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