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Manual winding device: The greenhouse film winding device is easy to use. When the temperature of the greenhouse rises, the winder can quickly and effectively release the wind, thereby reducing the temperature of the greenhouse in time, and effectively reducing the damage to plants and animals caused by the excessively high temperature of the greenhouse.

Wide range of uses: greenhouse ventilation equipment is used to open and close the side curtains and top curtains of plastic film greenhouses. It is an ideal choice for greenhouse ventilation and is widely used in solar greenhouses, breeding greenhouses, flower greenhouses, connected membrane greenhouses, fruit and vegetable greenhouses.

More details: (1) Aluminum housing (2) Precision inner core (3) Non-slip handle (4) Self-locking device (5) Pulley design (6) 45# International Steel (7) Double protection (8) Side wall installation.

Safety in use: The agricultural film take-up device is equipped with a self-locking function. In the process of opening and closing the machine, the manual winding device can be stopped and started at any position without any auxiliary device.

High-quality material: The greenhouse hand winch is made of cast aluminum, and is cast by a dense die-casting one-time molding process, with a long service life.