Utilization: pneumatic seals/hydraulics. Main features include, on the one hand geometry (these gaskets can be symmetric or asymmetric) ...
Utilization: at fixed and mobile seals, for translation and alternate spin movements, hydraulic and pneumatic environments.
Composition: rubber mixture of different qualities and hardness.
Utilization: the air pressure seals, oil etc. Vibration may produce or forward movement or they may sustain or separate the two environments...