过滤盒。试验方法。耐高温性能的验证。
Filter cartridges - Test methods - Verification of resistance to high temperatures.
过滤盒22，气流栅22a和弓形外罩20优选地通常由硬模塑聚合物材料构成。
The filter box 22, airflow grate 22a and arcuate-shaped cover 20 are preferably constructed of a generally rigid, molded polymeric material.
兼容所有的北盒和过滤器。
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