• Preco-N has uniform thickness of plating and rust-proofing
The wire plating and drawing processes are meticulously controlled so that there is no unevenness. It provides a uniform thickness.

• Preco-N improves the coiling yield remarkably
Using the best materials, we apply nickel plating to the surface of piano wire and steel wire before drawing it to achieve the final wire diameter. The surface is smooth and even. The tolerances on wire diameters are strictly controlled for the improvement of coiling yield.

• Preco-N has no burning trouble in the tempering process
Preco-N is not coated with rust proof oil, so any trouble of burning is never happened in the tempering process, and surface remains uniform. However, tempering at the temperature above 260°C will cause oxidation and loss of some corrosion resistance.