1 kg skein of annealed copper bonsai wire mm. 4.
This wire is produced in Europe but it has got the same physical caracteristics of the famous Japanese wire,but at a lower cost.
Copper wire is very indicated for the lavoration of the conifers and thanks to its bigger rigidity,it perfectly maintains the position of the branches more than the aluminum wire.
This copper wire, work-hardened by the drawing,is submitted to an annealing heat treating of re-crystallisation done vacuum-sealed in modern industrial furnaces.
This process allows the rearrangement of the crystalline reticulum previously deformed during the drawing and gives to the metal its natural ductility.
In the absence of oxygen, the annealing determines the removal of the surfacial contaminants and prevents oxidation.
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