1. He maha nga reanga o nga rawa uku hei whiriwhiri mai mo o tono, tae atu ki:

Konumohe Oxide / Aluminium / Al2O3 Ceramics

Zirconium Oxide / Zirconia / ZrO2 Ceramics

Beryllium Oxide / Beryllia / BeO Ceramics

Aluminium Nitride / AlN Ceramics

Silicon Nitride / Si3N4 Ceramics

Boron Nitride / BN Ceramics

Silicon Carbide / SiC Ceramics

Boron Carbide / B4C Ceramics

Titanium Diboride / TiB2 Ceramics

Cerium Hexaboride / CeB6 Ceramics

Lanthanum Hexaboride /LaB6 Ceramics

Macor Machinable Glass Ceramics

2. Tautoko hangarau mo te whakawhitiwhiti whakaaro, hoahoa, me nga tauira.

3. Te tuku tere mai i te tauira ki nga rahinga whakaputa.

4. He kaha o roto o te whare ki te hanga, ki te whakahiato, ki te mahi miihini, ki te karaihe, ki te whakarewa, ki te parai, ki te huihui, hanga ritenga me etahi atu.