Multicoloured gold jewelry tube - has layers of different coloured gold plated on to central core

摘要

The manufacturing process for a wire or tube in multicoloured cold consists of plating on a central core (6) or base layers of different coloured gold. The central core can be solid or hollow and is made of 18 carat gold. At least one layer of different coloured gold is then plated on to the core which is then stretched and enlarged. The diverse layers are thus partly separated so that they are all partly visible. The product can then be stretched to the dia. required and can be used for articles of jewelry.