1.Ọ na-eji na-eme ka red fireworks, mgbaàmà bombs, ire ọkụ tubes, analysis reagents, ngwa anya iko, mmiri mmiri kristal iko mkpụrụ, aerosol ọkụ na-emenyụ usoro na ndị ọzọ ọkụ reagents.
2.Ọ na-eji dị ka cathode ihe nke agụụ tubes na electronic ụlọ ọrụ, ụgbọ ala airbags na elu-ọkwa pigmenti.
