Area of application For soundproofing doors For fire resistant and smoke control doors Material Carrier: Aluminium Sealing profile: Self-extinguishing silicone Finish Carrier: Unfinished Sealing profile: Grey Sealing height 鈮?1 mm Installation For full mortice fitting with mounting bracket Installation dim. Groove: 16x 30mm Mounting For DIN left hand and DIN right hand use Installation Supplied with retractable door seal, mounting brackets with screws, release plates with screw PackageChina Acoustic And Drauht Seal manufacturers website:http://www.firestopchina.com/acoustic-and-drauht-seal/