The exhaust fan series of closed zipper, shells are of high quality with high-strength ABS plastic manufacturing, the color is bright, of high corrosion resistance ability;
封闭拉帘式排气扇系列面板都是用优质的工程塑料ABS制造，色泽光亮，抗腐能力强；
The exhaust fan series of closed zipper, shells are of high quality with high-strength ABS plastic manufacturing, the color is bright, of high corrosion resistance ability;
封闭拉帘式排气扇系列面板都是用优质的工程塑料ABS制造，色泽光亮，抗腐能力强；
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