... :3.4r/m Features of Anti-drop Electric Roller Shutter Motor1. It can be driven by electricity ... small shaking, small power wastage Anti-drop Electric Roller Shutter Motor:1.Drip-proof and self-lock.2 ... base on the demand of market. Widely used in supermaket, warehoue,garage,post,bank,factory etc.. It ... for single-phase 3p stand for third-phaseIn line with our policy of continuous product development, we ...