This is an inquiry message about louver in the 108th China Canton Fair. (这是一条买家关于"louver"的询盘信息，来自第108届中国广交会。)Inquiry Message (询盘信息) louver need a 18x18 alum louver with a flange. with a open and close damper. installing louver through a cinder block wall, and want to be able to close a damper Contact Info (联系信息) scot friedman 11706 Company: amsco a/c E-mail: amscoac@aol.com amscoac@aol.com
