fans and cooling pad for chicken coops Fan Drop Hammer Type Exhaust Fan Butterfly Cone Fan Fiberglass Cone Fan Centrifugal Shutter Type Exhaust Fan Evaporative Cooling Pad Cooling Pad 1.two model:7090 and 5090. 2.four color can be choose:brown,green,green&brown,black. 3.three frame material:aluminum alloy,stainless steel and hot galvanized steel. 4.strictly according standard to produce,85 pieces 600mm width paper;adopt imported kraft paper,weight is 105g/m3,tension stress:70N,thickness 0.18-0.20mm suction height 45mm/10min,moisture 5%-8%,wet strength:18N