发布时间:2025-01-18 09:44:21
一般是两个零件,一个零件装气管接头,另一个零件做吸盘,中间装O型圈,比如你这个零件。
吸盘很小比如就中间一个孔吸,那做成一个零件也行。
ds8624型三相四线有功电表型号为3156a2000r47kwh
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