asked in Product related by (320 points)
edited by
這款主要是功用是導水管,是爲了插入水中減少氣泡。這對流量的影響不大。

1 Answer

answered by (107k points)
Hello Ened 202,
 

大概9mm, 請問您需要這個内徑是要用在哪裏?

 

 

 

 

 

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