Qingzhou Yongsheng Machinery Co.,Ltd is one of the professional China stainless steel frame cooling pad manufacturers and suppliers,Website:://.qzys-exhaustfan.com, welcome to wholesale low price stainless steel frame cooling pad from our factory.Installation tips 1.the installation location is always in the windward and the exhaust fan is in the downside. There must be enough room in the air inlet. 2.generally，it’s better to dispose 6~8 ㎡ cooling pads for one set of exhaust fan. The pads also need to be distributed uniformly.  3.Both the exhaust fan and the cooling pad are flush mounted. Reserve or dig out the location on the wall of the house.Model Height (mm) Width (mm) Thickness   (mm) Frame Material Cooling Pad Color 7090 1000~2000 600 100, 150, 200 Galvanized, AL, SS Brown, Green, Brown and green, Single Coated 5090 1000~2000 600 100, 150, 200