タイトルまたは説明

The combined roof ventilator is the new generation ventilating product that our company developed through drawing lessons from domestic and foreign similar products . It has carried on the multi-operating mode optimization experiment in the air current organization, and we have made improvement in the structure for many times, and changed the original angular structure into the high capacity structure, thus it has achieved the international standard . It has good performance of rainproof, against snow and takes shelter from wind . This product has been widely used in metallurgy, machinery, chemical industry, light industry, electron workshops and so on .