1. Front and back cover and cylinder tube are connected by threads;
2. Piston adopts heterogeneous two-way seal structure. It has compact size and has the function of grease reservation;
3. Front cover adopts self-lubrication bearing guide that has good performance of lubrication and guide;
4. There are several modes of back cover, which makes the installation of cylinder more convenient;
5. There are cylinders and mounting accessories with several specifications for you choice.