本來可能起止回閥作用。有無皆可。把所有的Oring換了，就不漏氣了。釘槍不用，肯定會漏。

来源: PrimeryColor 于 2025-08-01 16:54:47 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.