正航生產(chǎn)的承天倍達(dá)濾芯采用進(jìn)口濾材，波折多等優(yōu)點(diǎn)，濾芯的內(nèi)部有三道加強(qiáng)筋，來(lái)加強(qiáng)濾芯受壓能力，是濾芯在壓力增大的情況下，而不變形等，正航生產(chǎn)的承天倍達(dá)濾芯具有，納污量大；耐高溫、耐腐蝕性好等優(yōu)點(diǎn)。

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