COPTECH doo is renewed company from Serbia, former Yugoslavia (Europe). In our offer we have a wide range of copper tubes for various industrial applications. Also we supply all kind of cables and conductors up to 200kV, and all kind of copper wires (round or profile, bare or insulated).. COPPER TUBES We have copper tubes and pipes with inner diameter fi 5-76 mm and wall thickness 0. 35-2. 5 mm, in - soft condition, - half-hard condition and - hard condition. With Imperial and ...