Unlike other ceramic materials, zirconiumoxide (ZrO2 –also known as zirconia) is a material with very high resistance to crack propagation. Zirconium oxide ceramics also have very high thermal expansion and are therefore often the material of choice for joining ceramic and steel . But now it also with K gold or silver to be very trendy jewellery .
Vona Consulting was established in New York, internationally operated with three offices in China. chinese manufacturers
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