Na mba ụwa, a na-ejikọ ya na usoro ọgwụgwọ na mkpuchi dị elu, na-anwale nnwale, metals na ngwaahịa, ihe na-adịghị mma, igwe na-emepụta, roba, ngwaahịa dị mma, ime ihe mgbochi mmiri, mital na-egbu egbu, mitallurgy, Facters, ihe eji eme ihe, ngwaahịa na Variins, ugbo ala, ihe mkpuchi, netwọk na netwọkụ na nkesa nkesa, ihe na-abụghị mitallic.
N'ime nhazi nke China, ihe metụtara usoro nchekwa ihe, usoro nyocha maka ihe na-emepụta ihe, usoro nyocha, ma ọ bụ okirikiri, nke na-egbochi ihe ejixi, Ngwaahịa ndị ọzọ dị mkpa, mmanụ na-egbochi ya, usoro nyocha maka ígwè na iron, usoro kemịkalụ, ule kemịkal ihe eji eme ihe, uzo eji eme ya, ihe eji eme ya, ihe eji eme ya, uzo ahihia, ihe eji eme ya, metalgunic osisi Popinengs, ntụ ntụ na ngwaahịa, ngwa ngwa, ọla na eriri na alloys ha, nnu na-agagharị Ngwá ọrụ, ngwa anya ngwa ngwa, ndị ọzọ na-abụghị mitallic, ọgwụgwọ ọkụ, yana ụkpụrụ na ụzọ General maka roba. Ule nnwale eji na vidiyo a bụ GB / T 5314 ntụ ntụ maka ntụ ntụ, na usoro Samplings bụ ... (ekwughi na ederede mbụ).
Oge post: Mar-27-2023
