1.4539 efere, nguzosi ike na-eguzogide. Agbanyeghị, nkwụsi ike nke ọkwa a na-agbadata na oke okpomọkụ, karịsịa karịa 4000. ASTM A240 na-enweghị ike ịbụ ihe ngwọta okpomọkụ na-agwọ na 1090-11759Ãc site na ijinyụgbu. Ọgwụ ọkụ dị mma maka ike ya. A na-eji mpempe akwụkwọ 1.4535 na akụrụngwa mmanụ, pulp na ụlọ ọrụ nhazi akwụkwọ, ahịhịa na-ekpuchi ahịhịa, wdg screebing.