現(xiàn)貨液壓比例閥D31FHE02C1NB00污染物是液壓系統(tǒng)油液中對系統(tǒng)起危害作用的的物質(zhì)，它在油液中以不同的形態(tài)形式存在，根據(jù)其物理形態(tài)可分成D31FWE02DC2NKW0
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：固態(tài)污染物、液態(tài)污染物、氣態(tài)污染物。 　　固態(tài)污染物可分成硬質(zhì)污染物，有：金剛石、切削、硅沙、灰塵、磨損金屬和金屬氧化物；軟質(zhì)污染物有：添加劑、水的凝聚物、油料的分解物與聚合物和維修時帶入的棉絲、纖維。     R900905303 LFA32D-7X/F 
     R900929930 LFA32D-7X/FV 
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     R901194395 LFA32EWA-7X/CB10DQMG24 
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     R901058891 LFA32EWA-7X/CB40DQMG24 
     R900931071 LFA32EWB-7X/CA10DQMG24 
     R900947051 LFA32EWB-7X/CA20DQMG24 
     R901119788 LFA32EWB-7X/CB20DQMG24 
     R900938073 LFA40D-7X/F 
     R900974094 LFA40D-7X/FV 
     R900938121 LFA40H1-7X/F 
     R900969017 LFA40H1-7X/FV 
     R900938122 LFA40H2-7X/F 
     R900969617 LFA40H2-7X/FV 
     R900938128 LFA40H3-7X/F 
　　液態(tài)污染物通常是不符合系統(tǒng)要求的切槽油液、水、涂料和氯及其鹵化物等，通常我們難以去掉，所以在選擇液壓油時要選擇符合系統(tǒng)標準的液壓油，避免一些不必要的故障。 　D3DW020BNJWI5N D3DW020BNJWI5N42
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　氣態(tài)污染物主要是混入系統(tǒng)中的空氣。 D1FHE50BCNBJ00
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