Dị ka ọ na-adịkarị, anyị ga-eji ụgbọ ala mba ụwa dị ka DHL, FEDEX, TNT, UPS ... na-ebuga ngwugwu obere akụkụ; Ọ bụrụ na ịtụ nnukwu ngwaahịa, ụgbọ mmiri site n'oké osimiri ma ọ bụ ikuku, tupu anyị akwado iwu anyị ga-akwado ndị ahịa. Pls echegbula ngwugwu anyị, ngwongwo niile ejiri ọkọlọtọ ọkọlọtọ jide n'aka na nchekwa ngwaahịa ahụ n'oge njem, nkwakọ ngwaahịa bụ nchekwa maka nnyefe n'aka ndị ahịa.
Ee, ndị injinia ọkachamara nwere ọtụtụ ahụmịhe nwere ike inye nkwado teknụzụ n'efu.