Instrumentum ad duritatem Rockwell probandam
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HRS-45S Instrumentum ad Duritatem Rockwell Superficialem Tactilem Examinandam
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XHRS-150S Instrumentum Duritudinis Rockwell ad Tegumentum Tactile
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SCR3.0 Durior Examinator Rockwell et Superficialis Rockwell Plenus Automaticus cum mensa XY automatica
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HR-150CS Instrumentum ad duritatem Rockwell examinandam
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HR-45C Rockwell duritiae probator
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SCR2.0 Instrumentum automaticum ad duritias Rockwell examinandas
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HRSS-150XS Instrumentum Tactile ad Duritatem Rockwell et Superficialem Examinandam
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HRD-150C Instrumentum ad duritatem Rockwellianum cum indice rotatorio
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HRD-150CS Instrumentum Duritudinis Rockwell Motore Actum (mensura digitalis)
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HRD-45 Instrumentum ad duritatem Rockwell superficialem probandam, a motore impulsum
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HRS-150ND Instrumentum Digitale ad Duritatem Rockwell Examinandam (Naso Convexo)
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HR-150C Rockwell duritiae probator
