... surface treatment 4. easy to install 5. safty lock Sliding aluminum door and window are prefect for outdoor, keep an safe place for you ... , 80, 85, 90,100 Series...2. Opening style: fix, sliding, casement, awning, sliding-hung, thermal break, etc3. Treatment: painting/powder coating (provide ... any helps, pls feel free to contact me directly. Aluminum Sliding Door