1Made of high quality aluminum alloy, high hardness, high strength, rust and corrosion resistance. 2The front and rear covers are threaded to the cylinder tube for tight connection. 3The piston seal adopts a special-shaped two-way sealing structure, which is compact in size and has oil storage function. 4The front end cover is guided by self-lubricating bearings, which has good lubrication and guiding performance. 5Simple structure, easy to install and use.
