1. professional manufacturer for roller shutter machine. 2. good quality and competitive price. 3. durable and noiseless. TOMA Roller shutter machineSpecification:1) Dia.: 35mm, 45mm, 59mm, 92mm2) Torque: 3N.m,6Nm,10N.m,20N.m,30N.m,40N.m,50N.m,60N.m,80N.m,100N.m,120N.m,140N.m,180N.m,230N.m - 300N.m3) Standard or manual type is optional.4) Power supply: 220/230V, 50Hz; 110V, 60Hz 5) Mechanical ...