A na-ejikarị skru eme ihe. Kwụsị skru bụ otu n'ime ihe anyị na-ejikọ ọnụ.A na-ejikarị ya n'ọhịa ndị a:

1. Mpempe igwe anaghị agba nchara, efere ọla, efere galvanized, nrụnye injinịa.

2. Mgbakwunye mgbidi ụlọ nke igwe elekere nke ọkụ na ntinye nke ime ụlọ na nke ọzọ.

3. General Angle steel, iron steel, plate iron na ihe ndi ozo eji aru oru tinye.

4. Mgbakọ ọrụ nke igbe ụgbọala, igbe akpa, ụlọ ọrụ na-arụ ụgbọ mmiri, akụrụngwa friji, wdg.