4439| 9
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頂針式點(diǎn)膠閥 |
點(diǎn)評(píng)
進(jìn)膠的位置知道,就是上面兩個(gè)進(jìn)氣孔,分別起什么作用?因?yàn)榘l(fā)現(xiàn)不管哪個(gè)進(jìn)氣,我膠都會(huì)流出來(lái),不知道是本身這樣,還是東西壞了
人家都這么問(wèn)了,你得告訴人家哪個(gè)是進(jìn)氣的,哪個(gè)不是進(jìn)氣的而是進(jìn)膠的啊。。。
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