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◆Reasonable cone designing which can concentra-te blowing and direction,so the air flow is bigger and the fan will be energy-efficient, lower noise;
◆The frame is hot galvanized with advanced auto-machining technique.The thickness of the galvanized layer is 180g/m2;
◆One fan with 6 Stainless steel blades, Model 430BA. Do balance test to make sure the weight of each blade is similar.
◆Using advanced front double door opening device small wind resistance，good sealing，high efficiency，lengthened cone design improve exhaust power．
◆Fan double doors closed with the rubber sealing which effectively avoid air backflow when start fans at different time．Greatly improve the operation efficency by 15-20％compared with the same power fan.
◆Galvanized steel frame is made of 180g／m2。galvanized layer avoid rust．
◆Fan blade is special designed for top grade efficiency which made of Krupp stainless steel by punch forming．Large air volume，no deformation，no broken，no dust，attractive and durable Thickness 12mm，surface finish BA grade．
