The region of the base body (1) which is covered by the soft material supports (2) also has angular ring teeth (5).
主体(1)由软材料覆盖层(2)覆盖的区域附加具有角形的环形齿(5)。
The region of the base body (1) which is covered by the soft material supports (2) also has angular ring teeth (5).
主体(1)由软材料覆盖层(2)覆盖的区域附加具有角形的环形齿(5)。
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