本实用新型涉及一种空气过滤器滤芯，由壳体、中心轴和折叠式滤纸组成。
The utility model relates to a filter-element of air-filter comprising casing, central shaft and folding filter-paper.
过滤介质包结构；过滤器滤芯；空气滤清器及方法。
Z-filter media pack arrangement, filter cartridge, air cleaner arrangement and methods.
过滤介质包结构；过滤器滤芯；空气滤清器及方法。
Z-filter media pack arrangement, filter cartridge, air cleaner arrangement and methods.
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