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选用美国、日本等国的合成高强度聚酯长纤维非织造布材料，其纤维呈光滑的管状，纤维相互交叉，开孔更小，分布更均匀，具有良好的过滤性能。 
2、聚酯长纤维滤料的应用，使滤筒不仅具有较好的耐酸碱性能，过滤效率更高，运行阻力小，与传统的滤材相比，其具有不可比拟的耐磨性能和高强度、耐破度，脉冲反吹及其它方式更易清灰，而且可用水反复清洗，而不损伤滤材，延长使用寿命