We are experts on extracting pure metallic copper from the etching solutions used in manufacturing of printed circuit boards (PCB). Sigma designs, produces, installs, and services recycling systems for customers globally. With extensive experience in the field, we have managed to create competetive advantages for and together with our customers during several decades. Using our system will not only save the environment, but also significantly reduce operating cost as well as improving work safety conditions.

Sigma Engineering AB

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