Nkwakọ ngwaahịa (Steel belt baling)
Mgbatị eriri igwe: Otu ngwugwu nke ọkpọkọ igwe ga-abụ otu ọkwa nchara, ọkwa nchara, ọkpọkọ nchara nke otu nkọwapụta.Ọ bụrụ na ihe na-erughị otu ùkwù, a ga-achịkọta ya n'ime obere ùkwù.Dị ka arịrịọ onye ahịa si kwuo, a na-etinye okpu mkpuchi plastik na njedebe ọ bụla nke ọkpọkọ ígwè ọ bụla dị larịị.