Okpu
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Carton Steel na igwe anaghị agba nchara
Okpu ọkpọ ahụ bụ ọkpọkọ ụlọ ọrụ mmepụta ihe nke a na-agbanye na njedebe ọkpọkọ ma ọ bụ tinye ya na eriri mpụga nke ọkpọkọ ọkpọkọ iji kpuchie ọkpọkọ.A na-eji ya mechie ọkpọkọ ma nwee otu ọrụ ahụ dị ka ọkpọkọ ọkpọkọ.Okpu ọkpọkọ convex gụnyere: okpu ọkpọkọ hemispherical, okpu ọkpọkọ oval, okpu efere na okpu okirikiri.Okpu anyị na-agụnye okpu nchara carbon, mkpuchi igwe anaghị agba nchara, mkpuchi alloy, wdg, nke nwere ike gboo mkpa gị dị iche iche.
