Ihe ndị a bụ ụfọdụ n'ime ihe ndị anyị nwere ike inyocha. Ọ bụrụ na ị nwere ọtụtụ ihe ị ga-achọ ịme nyocha, kpọtụrụ anyị biko.
Nweta ọkwa ọkwa;
A-♦ Dimension, straightness, roundness nnyocha;
♦ Chemical mejupụtara Analysis;
♦ Mechanical Prosperity Test: ike ọdụdọ, mkpụrụ ike, elongation, Mbelata nke ebe, mmetụta, ekweghị ekwe (Brinell ekweghị ekwe, Rockwell ekweghị ekwe, Vickers ekweghị ekwe) wdg;
Inspection Nondestructive nnyocha: ultrasonic ule-UT, magnetik urughuru ule-MT, visual ule-VT wdg;
Inspection Nyocha nyocha nke metallographic;
Structure Nhazi micro, usoro Macro.