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Qingzhou Yongsheng Machinery Co.,Ltd is one of the professional China frp roof fan manufacturers and suppliers,Website:://.qzys-exhaustfan.com, welcome to wholesale low price power roof fan, fiberglass roof fan from our factory. FRP molded has smooth shaped and low air restrictionStrong and corrosion resistant fiberglass housing,70kgs person on it, no deformation.Good efficiency and light weight, accommodate in any roof.
