Die plumbers-Tagebücher
The origin of the word "plumber" dates from the Roman Empire.[3][4] Roman roofs used lead hinein conduits and drain pipes[5] and some were also covered with lead; lead welches also used for piping and for making baths.[6] The Latin for lead is plumbum. Rein medieval times, anyone who worked with lead was referred to as a plumber; this can Beryllium