Inquiry (采购产品): Ventilation question I have 8 "vents" in the concrete walls in my warehouse area that open and close based on pressures. It may be time to replace some of them due to damage. I can't locate a supplier. Any suggestions? They are louvered units approximately 3'x3' by 6 inches deep. They are flush with the wall on the outside of building and extend the 6 inches inside. **** Hidden Message ***** Mark Guentert 916 Cotting Lane Vacaville, CA 95688 USA Company: The Reporter Title: Systems Manager Phone: 707 453.8111 Fax: 707 447.7405 E-mail: markag@thereporter.com **** Hidden Message ***** markag@thereporter.com
