| 摘要 |
A plug blade (3) includes a front section and a rear section. The rear section has a through-hole extending from a first face of the rear section through a second face of the rear section opposite to the first face. An insulating laying (4) is formed on the rear section by injection molding and fills the through-hole of the rear section of the plug blade (3). The insulating layer (4) includes a flange (41) that abuts against an inner face of an inner frame during a procedure for forming a housing of a plug, thereby preventing moisture from entering an interior of the housing of the plug.
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