A suspension board with circuit permits a terminal portion to be formed by electrolysis plating without exposing a conductor layer to outside and a production method thereof. The assembly includes a handle section and a roller support section. Exhaust temperatures may be increased until a threshold engine temperature is reached. Two private keys may be generated\u2014a first private key based on the at least one unique mobile identifier and a second private key based on the at least one unique vehicle telematics unit identifier. The width of the curved latching slot decreases along the curved extending direction, and the width of the protrusion is substantially the same as the width of one end of the curved latching slot, and wider than the other end of the curved latching slot. The ink is used in the printing or the formation of conductive circuits using an ink jet printer.