This is an inquiry message about attic exhaust fan in the 108th China Canton Fair. (这是一条买家关于"attic exhaust fan"的询盘信息，来自第108届中国广交会。)Inquiry Message (询盘信息) attic exhaust fan about 30 years ago we purchased an attic fan, a 48"" fan attatched to a motor...a louver in the ceiling, 40""X31"" that opened when the fan was turned on...a window or door had to be opened to let the outside air in to be blown out thru the attic.....do you sell this system?....thanks...dg Contact Info (联系信息) dg g 07446 Company: none E-mail: skow11@optonline.net skow11@optonline.net
