The hoop can be sleeved at the outer side of the opening formed at the front casing and the back casing, with a top end forming a slightly contracting opening.

  • 包括由塑料制成的前壳体、后壳体和箍儿,箍儿可套在前壳体和后壳体形成的开口处外侧,其上端形成有稍为收缩的开口。

  • 互联网摘选 2025-01-20 17:26:00

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