1. The frame is made of high quality galvanized plate, thickness of galvanized layer: 180g/, ensure not rust in the future use.
2. Thickness of shutters plate; 0.8mm, never deformation, good sealing; The drive shutter is 1.5mm thickness, not deformation, stable drive performance
3. The adapting pieces of shutters are made of high quality nylon, assure their service life, open flexibly.
4. With the high quality squirrel-cage motor, compact structure, reliable quality, good performance, large output torgue; 1phase, 220V, 1.5W5. High quality safe net for your choose(or not choose), effectively prove prevent the foreign materials into the shutters, assure safety. Safe net is made of hop-DIP galvanized wire, not rust