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    • Study of effects of surface roughness 10 hardness test V2.Lv5 

      Jumroonrut, Sutthipong; Phangphet, Prasit (2011-08-22)
      The objective of this work is to study the effect of the surface roughness on the measured hardness. The preparation of the surface roughness level complied with the ISO 1302: 1992 standard. There are many factors ...