樓主: qq652247382
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風(fēng)道內(nèi)平均壓力3kpa,濾網(wǎng)前后壓差在30-200pa,如何測(cè)差 |
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點(diǎn)評(píng)
不知是不是被騙了哈哈賣的都這么說
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