NM400 Yiri efere ígwè na-eguzogide
Nkọwa dị mkpirikpi:
NM400 bụ otu ụdị efere igwe na-eyi uwe / abrasion nke China, nke a na-anabata nke ọma na etiti ọwụwa anyanwụ na Africa.Igwe anaghị agba nchara NM400 na-ekpo ọkụ na-ekpo ọkụ wee mezie efere ndị ahụ ọkụ site n'imenyụ ọkụ na iwe ọkụ na ịmegharị ọkụ na usoro iwe ọkụ, n'otu n'otu.Emere ule mmetụta ahụ site na iji ihe nyocha ihe eji eme ihe.A na-enyocha micro-structure na elu mgbawa site na nchikota nke anya microscopy, nnyefe eletrọnịkị na nyocha ụzọ eletrọnịkị microscopy.