Aha Ngwaahịa: seramic contamic ceic ceive
Otu: nkọwa na usoro ọrụ
Aha ngwaahịa: modul sendic
Na-atụ eserese: dakọtara na mmiri ceramiiki, gas ma ọ bụ mmiri mmiri
ogologo oge nkwụsi ike nke 0.5% fs / afọ