Pneumatic cylinder There are 2 types of one-way to the cylinder is 2-way. This project, which will use a 2-way piston because this project requires wind control.Freely.
There are two types of cylinders, pneumatic cylinders with 2-way through the project, which will use the two cylinders. Because this project is to control air flow freely.
Air cylinder, there are 2 type is one way with the cylinder 2 which this project will use the cylinder model 2. Because this project to control wind freely