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Product Summary:Stailess steel frames+stailess steel face +Aluminum meshes+Metal latch
Frame :Stailess steel frame
Latch:Metal latch
Filtrating mesh :4 layers aluminum meshes +1 layer perforated stailess steel frame face
Initial wind speed:14.3m/s
Through wind speed :5.4m/s
Capacity of oil :330g/m
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