"Eziokwu, ihe ohuru, na arụmọrụ," ga-abụrụ ndị ahịa na-anọgidesi ike na ndị ahịa maka nnabata na-enweghị isi,Hydraulic lubrication,Usoro injin injin,Spring usoro,Usoro mmiri mmanụ. O nwekwara otutu ndi enyi buruburus ndi ahu na-ele anya ka ihu, ma obu nye anyi aka ha zuta ngwongwo ndi ozo. A ga-anabata gị ịbịa China, nye obodo anyị na ebe a na-arụpụta ihe! Ngwaahịa ahụ ga-enyefe ụwa niile, America, Australia, Australia, Australistan, Natisan, New Zealaland, Guatemala.genity na-ekwusi ike mgbe niile nke "ogo na ọrụ bụ ndụ nke ngwaahịa ahụ". Ruo ugbu a, a napụla ngwaahịa anyị ka ihe karịrị mba 20 n'okpuru nchịkwa anyị siri ike na ọrụ dị elu.