This type of copper is made of 99 per cent pure, bare copper. The copper squander typically arises from roofers, plumbers or heating engineers. Throughout day-to-day get the job done, copper residues crop up in the form of pipes, leftover pieces of rails and sheets or as waste from punching. https://shanemurww.suomiblog.com/detailed-notes-on-copper-wire-scrap-rate-47778874