Ngwaahịa anyị na-eji ogwe iko ojii siri ike nke nwere ọtụtụ ugboro siri ike karịa iko nkịtị, ugboro 3 ruo 5 siri ike na-ehulata na 5 ruo 10 ugboro siri ike karịa iko nkịtị, ike dị elu, ojiji dị nchebe karị, ibu ibu ibu. ikike, mma na friability, ọbụna ma ọ bụrụ na toughened iko mmebi nwekwara ọ dịghị nnukwu n'akuku nke obere irighiri ihe, mmerụ ahụ mmadụ belatara nke ukwuu.E jiri ya tụnyere iko nkịtị, nguzogide okpomọkụ nke iko siri ike dị 2 ~ 3 ugboro dị elu, ma nwee ike iburu ọdịiche okpomọkụ nke iko siri ike 150LC ma ọ bụ karịa, nke nwere mmetụta doro anya na igbochi ọkụ ọkụ.
N'ihi na ndị ọzọ ika, mgbe ụfọdụ, gas hob ga-eme ka odo ire ọkụ, red ire ọkụ ma ọ bụ blacken ala, ọ bụ ya mere na omenala gas hob enweghị ike inye ikuku nke ọma na ikuku enweghị ike ịbanye na ọkụ center, ala arụmọrụ na CO abnormal emission;
Maka ika ndị ọzọ, na-emekarị, enwere nsogbu 2, nke mbụ, ọ pụghị ọkụ kpamkpam, nke abụọ, ike ọkụ ezughị ezu;
