Inquiry (采购产品): Louver Damper Please provide infor mation of Louver Damper for 57.6"X72" Duct. Also if you could give us information about duct and the expansion joint. Your early responce is highly appritited. Regards, Liakat Syed Jacobs engineering. Tel. # 832-351-6439. e-mail. liakat.syed@jacobs.com **** Hidden Message ***** Liakat Syed 5995 Rogerdale Road Houston, TX 77072 USA Company: Jacobs Engineering Title: Piping Engineer Phone: 832-351-6439 Fax: 832-351-7781 E-mail: liakat.syed@jacobs.com **** Hidden Message ***** liakat.syed@jacobs.com