... ,Structure of roller shutter.(1) End Cap, (2) Bearing Bracket (3) Ball Bearing, (4) Steel Cap (5) Security Plate (6) Box(up)(7 ... ) Slat Cap(13) Bottom Bearm (14) Plastic Stopper (15) Shutter Slat (16) Box(down) (17)Motor Controller2, Performance date:3, Widely used ... , anti-bad weather, safe, quiet, luxury.13, packing: one set roller shutter be packed in a 16mm thinckness wooden case which don ...