With this AI pipe (1), a through-hole (H) which is punched out by press working is formed in at least one of the clamping portion (C1) and the clamping portion (C2).
对于该AI管（1），在夹持部（C1）和夹持 部（C2）的至少一个中形成通过压制加工而冲出的通孔（H）。
With this AI pipe (1), a through-hole (H) which is punched out by press working is formed in at least one of the clamping portion (C1) and the clamping portion (C2).
对于该AI管（1），在夹持部（C1）和夹持 部（C2）的至少一个中形成通过压制加工而冲出的通孔（H）。
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