Ndị otu Zhang Zhongjian, Onyeisi nke Zhuzhou Cemented Carbide Association, gara leta ụlọ ọrụ anyị.

Na Febụwarị 20, obere oge ka Ememme Lantern gasịrị, ndị nnọchiteanya Zhang Zhongjian, Onyeisi nke Zhuzhou Cemented Carbide Association, gara leta ụlọ ọrụ anyị. Zhuzhou Cemented Carbide Association bụ otu n'ime ndị isi na ụlọ ọrụ carbide simenti na Zhuzhou, Onyeisi Zhang bụkwa onye a ma ama na ngalaba carbide simenti nke ụlọ ọrụ ahụ. N'oge nleta ahụ, Onyeisi Zhang na ndị nnọchiteanya ya nwere mkparịta ụka miri emi na mkparịta ụka na ndị otu njikwa ụlọ ọrụ anyị. Ha kọwara anyị ihe ọhụrụ gbasara ụlọ ọrụ mba ụwa na nke mba, jụọ ajụjụ nke ọma gbasara mmepụta na ọnọdụ ọrụ ụlọ ọrụ anyị, ma nyekwa aro maka mmepe ụlọ ọrụ anyị n'afọ 2019.