The advantages of SDA thin cylinders are thinness and lightness. They are embedded in the installation method and are easy to maintain.Give play to the characteristics of being thin and light; easy to install: use embedded installation method, do not need any accessories to meet the requirements of saving space; easy to maintain: use simple assembly method for design, convenient for assembly, disassembly and maintenance; magnetic control Simplicity: The assembly slot is reserved around the body, so that the magnetic switch is very easy to install and fix and position adjustment; high precision and no impact sound: the internal length of the front cover is used to increase the guide to improve the accuracy, and the rubber buffer sheet is placed before and after , In order to eliminate the sound of the piston hitting the front and rear end caps.