1. Door curtain: High strength polyster textile fiber 2. Curtain thickness: 0.8 - 1.2 mm 3. Opening speed: 0.8 - 1.5 M/S 4. Closing speed: 0.6 - 1.0 M/S 5. Side Rail options: 2.0mm thick cold-roll steel sheet (Bao Steel) / 2.0mm thick stainless steel 6. Tube shaft: 114mm diameter / 2.5mm thickness round tube 7. Cover box options: 1.0mm thick cold-roll steel shett (Bao Steel ) / 1.0mm thick stainless steel 8. Motor brand: SEW / SIEMENS 9. Motor power: 550W / 750W / 1500W / 2200W / 4000W 10. Control box: SIEMENS / MITSUBISHI 11. Safety performance: Airbag / Photo cell 12. Optional control mode: Geomagnetic right, Radar, Stretcing wire switch, Linkage interlock, Pull rope, etc