Inquiry (采购产品): Damper information I am looking to specify and purchase several 3 hours rated fire damper and a register. one is for a 10" round duct, one is for a 14" round duct, a 14"x14" register, and 2 or 3 3 hours damper about 16"x16". I am also looking for access door (inspection window for the fire damper). **** Hidden Message ***** Simon Li 94621 USA Company: PG&E / Enercon E-mail: sli@enercon.com **** Hidden Message ***** sli@enercon.com
