To provide a solenoid valve having a sensor in which monitor devices for monitoring whether input or output pressure in the solenoid valve is appropriate and a switching state of a valve body are collected to simplify the structure and to facilitate the assembling operation, thereby enhancing safety and reliability. The method includes providing an actuator arm, providing a suspension arm, fixing a swage plate to the suspension arm, the swage plate including a swage boss extending therefrom, depositing a film lubricant upon at least an outer surface of the swage boss, and attaching the suspension arm to the actuator arm by swaging. The length of the base is greater than the width of the base. The apparatus also includes elements which automate the apparatus for creating the elastomeric nonwoven laminate. The coating consists of a porous technical ceramic material, such as a mineral wool.