Greenhouses, Greenhouse Shade System manufacturer / supplier in China, offering Aluminum Shaddle Clamp for Greenhouse, Metal Galvanized Rings and Clips, Galvanized Steel Wire Holding Clips and so on.
It is the last photo.
You have seen all photos.
The greenhouse poly film roll up winch motor can be used both for roof and side ventilation. Greenhouses covered with poly film needs to be opened by rolling up the film. With this unic set of product, it makes your greenhouse easily controlled.