An apparatus for welding a projection bolt includes a control unit which outputs an actuating signal for an advancing pressurizing means in response to at least a signal indicating completion of insertion of the projection bolt into a receiving hole and a signal indicating completion of movement of a steel plate part. An example method may include storing a set of three-dimensional positional data on a memory, storing a set of metric data on the memory, and storing a set of electrogram data on the memory. 0 eV, and in at least one of the plurality of luminescent units, the luminescent layer contains a polymeric luminescent material. In one embodiment, the bridge circuit may be further configured to flag transactions that cannot be converted from the second communication protocol to the first communication protocol. The invention also provides a method to manufacture the composition.