 Anyị na ngwaahịa na-bụ-eji na ụgbọala mmanụ na sekit na sekit, engine pipeline, drainage anwụrụ akara, na ala pipeline, nke nwekwara ike ga-eji na roba sooks, naịlọn sooks, ákwà-mesikwuru sooks ike-mgbidi sooks nke ígwè na chemical equipments dị ka mbupu , dizel engine, mmanụ ụgbọala engines, igwe ngwaọrụ, ọkụ nchebe aka ime osooso ma mechie joggle. 