... Torque Motor 3.Jam-prevention,Dust-tight,Waterproof 4.pull/push force:7.5KG Remote Car Central ... track design, work stably and smoothly, jam-prevention 4.Parting line is sealed by ultrasonic welding completely, ... to install, flexibly to install7.Compatible with car alarm system and remote controller8.Universal features, suitable for any ... Samples can be provided central locking system 4 door car alarm