An apparatus for manufacturing lightweight concrete composite blocks includes a form, a station conveyor, a form-loading station, a form assembly station, a curing oven, and a block removal station. The bearing part has a receiving space in which the cover plate of the fastening bracket is mounted so as to be rotatable between a locking position, in which the bracket arms engage behind the support part, and a releasing position, in which the bracket arms are out of engagement with the support part. The replication may include generating one or more logs indicating changes that have occurred on the virtual machine and sending the one or more logs to the other virtual machine. The server provisions an additional credential and sends the additional credential to the client over the secure link. With the process the procedure is such that in the individual steps only a respective one of the pigment components is bleached insofar as the laser conditions which are respectively specific to the various pigment components are set.