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产品规格：595*595*46
折叠式粗效空气过滤器
Fold-down coarse efficiency air filter
特点Features
●纸框或铝合金金属外框
●阻力小、风量大
●适用于空调系统的初级过滤
●Paper box or aluminum metal frame
●Responding to small resistance, air
●Applicable to air conditioning system
adopts the primary filtration
According to user requirements to customize different specificatio