1.Certification: CE, TUV, RoHS, CB. 2.Resist bad temperature, Fireproofing, Super defensive, 3.Auto Locking Device, Anti-theft Name:Roller shutter component side plate Material:Made of aluminum alloy Unit: pairspec: 205mm, 250mm, 300mm, 350mm, 400mm, 450mm available.Usage: Roller shutter door / windows Aluminum Side Plate