... good quality and competitive price. 3. durable and noiseless. TOMA Roller shutter machineSpecification:1) Dia.: 35mm, 45mm, 59mm, 92mm2) Torque ... 220/230V, 50Hz; 110V, 60Hz 5) Mechanical limit switch/Electronic limit switch is optional. Tubular motor with built-in receiver inside ... featuring high accuracy, resistant to wear, antirust, stable limit and long service3. Normal brake: single brake, non- ...