Dabere na Zhejiang, China, anyị bụ ọkachamara n'ịmepụta njikọ ọla kọpa na-agbanwe agbanwe maka njikwa eletriki na ala, dị ka waya ọla kọpa a kpara akpa, eriri ọla kọpa agbachie, wires brush carbon, na njikọ nrụgide.na stampụ ígwè.
Mgbe niile na-enwe tupu mmepụta sample tupu uka mmepụta;
Nyocha ikpeazụ tupu mbupu.
Ee.
A na-eji waya ọla kọpa nke akụrụngwa T1, nke nwere ọla kọpa nke 99.95%, na ọtụtụ n'ime waya ọla kọpa nwere ọdịnaya ọla kọpa na-erughị 99.90% na-eji n'ahịa.N'ihe gbasara akụrụngwa dị elu, ọnụahịa ahụ dịkwa ọnụ ala karịa ndị na-eweta ndị ọzọ, n'ihi na anyị bụ ndị na-emepụta ihe.