wˌɛn ɪnvˈɛstᵻɡˌeɪɾɪŋ ðɪ ˈɪnfluːəns ʌv nˈɑːnmətˈælɪk ɪŋklˈuːʒənz ɔnðə kwˈɔlᵻɾi ʌv stˈiːl, ʌv ɡɹˈeɪt ɪmpˈoːɹtəns ɑːɹ ðə pɹˈɑːpɚɾiz ʌv ðiːz ɪŋklˈuːʒənz: sˈaɪz, ʃˈeɪp, kˈɛmɪkəl ænd fˈɪzɪkəl kˌæɹɪktɚɹˈɪstɪks.
When investigating the influence of non-metallic inclusions on the quality of steel, of great importance are the properties of these inclusions: size, shape, chemical and physical characteristics.