标签：Cylind - 英国华人论坛

The same piston is pulled and pushed by the arm of the piston which in fact is powered by the help of the generator. This device piston allows it to hang slide down with the help of rings and valves along the side of the cylinder. They are t...英国华人论坛

Anybody who has ridden a bike with spring coil shock absorbers on hard undulating surfaces would know how different and efficient the damping is on a pneumatic and hydraulic shock. The present day shock is a very state of the art shock and v...英国华人论坛