The vertical blind is named because the blades are suspended vertically from the upper rail, which can be dimmed left and right to achieve the purpose of shading. According to the different materials, it can be divided into: PVC vertical blind, fiber fabric vertical blind, aluminum alloy vertical blind and bamboo wood vertical blind. According to different operation methods, it is divided into: manual vertical blind, electric vertical blind. According to the appearance, it can be divided into: vertical vertical blind and curved vertical blind.