... , Mid East, Eastern Asia, Western Europe Principle Introduction SHIDAI electric vertical blinds adopts 220V tubular motor, the lamina can rotate ... to adjust radial angle, has good anti-UV radiation, thermal insulation, dimming and anti-theft functions, the track use high ... passed through is downy and no-dazzling, make people feel warmer; plastic (PVC) shade curtain has good surface roughness, give ...