Let us know the characteristics of the commonly used vegetable greenhouse construction film roll

The film roll is an indispensable supporting facility for the construction of vegetable greenhouses. The manual roll roll drives the roll film shaft to rotate through the rotation of the handle, so that the plastic film for the vegetable greenhouse construction is rolled up layer by layer by the roll film shaft. 1. Reasonable speed ratio and torque design make it more labor-saving and more convenient for farmers to use in the construction of vegetable greenhouses; 　　 2. Key parts such as gears, gear shafts, and two-way self-locking devices are made of national standard steel through professional heat treatment. To ensure durability; 　　3. The shell is made of cast aluminum, which is made by precision die-casting one-step molding process, and the surface accuracy is very high; 　4. There is a hole at 2/3 of the crank handle, install the crank here, and the crank rotates The radius is reduced, so small space vegetable greenhouses can also be installed and used; 　　5. The surface is galvanized inside and sprayed with double-layer anti-rust protection, standard parts are made of stainless steel; 　　6. There is a self-locking device inside, and the film is rolled. In the process of opening and closing the device, it can stop and start at any position without any auxiliary devices, reducing the burden on farmers and friends.　　 Label: Machine roll film