... the Coefficient of thermal expansion is close to steel Zirconia ceramic has high toughness,high bending strength,high ... grinding ball,grinding medium,nozzles,ball valve and seat,zirconia moulds,fan axes,drawbench mould,incision tools,wearable ... knives and other wearable accessories. Zirconia material parameter:ItemTest ConditionUnit&SymbolZirconia Ceramic The main chemical ...