... made of aluminum 6063 T5,controled by remote control, Electric remote control Aluminum Roll Up Door is made of aluminum ... hook)The thickness is 1.0mmFunction:anti-sunlight,anti-rust,anti-lacerated, With rigid structure,theftproofing,noiseproofing,warm kepping ... hook)The thickness is 0.8mmFunction:anti-sunlight,anti-rust,anti-lacerated, With rigid structure,theftproofing,noiseproofing,warm kepping ...