There are two types of cylinders Cylinder is one-way and two-way which in this project is a two-way cylinder. Because this project is to control the wind
Pneumatic cylinder There are 2 types: 2 cylinder with one-way on this project, in which powerful using the cylinder 2. Because this project requires wind force control
There are 2 types of cylinder air pump cylinder is a one-way to the 2 framework in which to use this pump cylinder 2, a framework for the force of the wind to control