About materials and surface finishes - jewellery

Our jewellery blanks are made of high quality materials - mainly tombak CuZn20 (old designation MS 80), which is an alloy of copper (80%) and zinc (20%), or brass CuZn37 (old designation MS 63), which is also an alloy of copper and zinc, but in the ratio of 63% copper and 37% zinc.

All of our materials and galvanizing meet all health safety requirements and are therefore free of nickel, cadmium and lead.