N'afọ 1836, Sorel dị na France weputara nke mbụ n'ime ọtụtụ patent maka usoro mkpuchi nchara site n'itinye ya na Zinc a wụrụ awụ mgbe ihichachara ya mbụ.O nyere usoro ahụ aha ya 'galvanizing'.Akụkọ banyere galvanizing malitere ihe karịrị afọ 300 gara aga, mgbe onye alchemist-abịa-chemist rọrọ nrọ ...
GỤKWUO