Surface Roughness Standard Set with 30PCS for Surface Roughness Tester Meter

Surface Roughness Standards Set with 30 Specimens for Surface Roughness Tester

Surface Roughness Comparators for Surface Roughness Tester 30PCS Ra0.05-12.5

Surface Roughness Standards Set with 30 Specimens for Surface Roughness Tester

Surface Roughness Standard Set with Ra 0.05-12.5 GB6060.2-2006 30 Specimens

Surface Roughness Stand Comparator for Surface Roughness Tester 30PCS 0.05-12.5

Surface Roughness Standards with 30 PCS Ra0.05-12.5 for Surface Roughness Tester