1.The nri unit nke igwe nwere akwụkwọ abụọ akwụkwọ mpempe akwụkwọ iji jide AB abụọ mpempe akwụkwọ, nke na-enyere aka melite mmepụta arụmọrụ.N'okpuru ebe a na-ewere usoro ịṅụ ikuku, nke dị mma iji melite arụmọrụ njem na izi ezi.
2.Connecting unit adopts na-ekpo ọkụ gbazee nrapado, akụkụ anọ n'akụkụ nlele ọnọdụ, hụ na ndekọ ziri ezi na elu nkenke.
3.Folding unit na-eji akwụkwọ ntuziaka, nke na-edozi nsogbu nke siri ike ịkwado ebe mpịachi.Enwere ike ijikwa oke mgbakwụnye nke ọma.
4.The igwe nwere ike iji mmadụ abụọ rụọ ọrụ.Otu na-akwakọba akwụkwọ ma nakọta ọrụ a rụchara. Nke ọzọ na-apịaji akwụkwọ ndị ahụ ma nye ya n'ime eriri mkpakọ.Igwe ahụ dum dị mfe ịrụ ọrụ.