Kemgbe etiti Julaị, na-akwado usoro ihe dị mma dị ka inye ike mpaghara na mmezi akụrụngwa, ahịa ahịa calcium carbide na-arị elu. Na-abanye na Septemba, ihe na-ebutu gwongworo calcium carbide na mpaghara ndị ahịa na North China na Central China ejirila nwayọọ nwayọọ mee. Ọnụ ahịa ịzụrụ anọgidewo na-ebelata ntakịrị ma ọnụ ahịa adalatala. N'oge ikpeazụ nke ahịa ahụ, n'ihi mmalite mmalite nke osisi PVC ụlọ dị ugbu a na ọkwa dị elu dị elu, na e nwere atụmatụ nhazi ole na ole ka e mesịrị, dema ahịa kwụsiri ike. .
