The raw materials 1. No deformation at high temperature, anti-aging, anti-ultraviolet material melting in it. 2. Enhanced design elements combine to help prevent air and light from penetrating.
Net 1. Flexible opening and closing, good sealing. 2. Enhanced bird protection net design by button type to bolt type, effectively avoid transport damage.
Springs and pulleys 1. The return spring and pulley support are made of stainless steel, with longer service life. 2. Specially designed pull rod pulley, can put wire rope or connecting rod, flexible opening, easy installation
Wind deflector Air deflector can be supplied on request and Angle can be adjusted according to window sizeManual winch The operator can monitor the pressure gauges in the house and adjust them using a manual winch
Automatic winch The automatic winch works according to the set pressure of the hen house with the help of the environmental controller





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