The structure and technical parameters of all commercially available galvanized square Exhaust fan are basically the same. The main models are 1380*1380*400mm1.1kw, 1220*1220*400mm0.75kw, 1060*1060*400mm0.55kw, 900*900*400mm0.37kw. The speed of all galvanized square Exhaust fan is 450 rpm, the mo...
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