Apperance: Color and Iustre is symmetry,character is clear and smooth,flat, no bug on the surface.

 Engage and disengage force: Distributor: 35~70N, Spark plug: 35~70N

 Damping cable's resistance: Supression 16kΩ±30%, Wire winding 0.5KΩ~16kΩ,

 Insulation: No creepager under 30kv, 1h

 Simulate ignition: No creepage and no crack under 50Hz, 29KV 30S,

 Terminal pull off: ≥120N,

 Temperature range: -40°C~+250°C