发布时间:2025-01-30 02:55:02
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。
我想年低之前从河北高碑店买一套三居室的房子不知道都哪里有卖的
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