WC seat damper Resistance range:10-30kgf.cm WC seat damperBasic PrinciplesThe torque made by the damping oil to the rotating parts cohesion effect is the resistance. The resistance is decided by the viscosity and contact area of damping oil. Higher viscosity,bigger contact area, the resistance is bigger. Or, the resistance is smaller. Temperature CharacteristicsResistance of the damper varies ...