Na Disemba 14, 2020, National Standardization Administration kwadoro ntọhapụ nke “Arụgharị Steel Raw Materials” (GB/T 39733-2020) ọkọlọtọ mba akwadoro, nke a ga-emejuputa atumatu na Jenụwarị 1, 2021.
The mba ọkọlọtọ nke "Recycled Steel Raw Materials" bụ China Metallurgical Information and Standardization Institute na China Scrap Steel Application Association n'okpuru nduzi nke mba dị mkpa ministri na kọmitii na China Iron na Steel Industry Association. A kwadoro ọkọlọtọ ahụ na Nọvemba 29, 2020. Na nzukọ nyocha, ndị ọkachamara tụlere n'ụzọ zuru ezu nhazi ọkwa, usoro na nkọwa, ihe ngosi nka, ụzọ nyocha, na iwu nnabata na ọkọlọtọ. Mgbe nyochachara nke ọma, nyocha nke sayensị, ndị ọkachamara nọ na nzukọ ahụ kwenyere na ihe ndị a na-ahụ maka ọkọlọtọ na-emezu ihe achọrọ nke ọkọlọtọ mba, wee kwenye ka ha gbanwee ma melite ụkpụrụ mba nke "Ezigharị igwe anaghị agba nchara" dị ka nzukọ chọrọ.
Nhazi nke ọkọlọtọ mba nke "Ihe ndị a na-eji ígwè arụ ọrụ" na-enye nkwa dị mkpa maka iji ya eme ihe n'ụzọ zuru ezu nke ihe onwunwe ígwè dị elu na-eme ka ọ dịkwuo mma na imeziwanye àgwà nke ihe eji emegharị ígwè.
Oge nzipu: Feb-28-2023
