air grille 1.aluminum 2.many kinds to your choice 3.more standards colors to you choice The features of Return Air Filter Grille1) Material: Grade AA aluminum alloy 2) Thickness: 0.8mm~1.2mm, as per demand 3) Shape: Square and rectangle 4) Kinds of punch: More size and pattern to choice 5) Common specification: (INCH)12*12, 12*24, 12*30, 14*20, 14*25,16*25,16*30, 18*30, 20*20, 20*25, 20*30, 24*24 ...
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