50HR30N, Superficial Rockwell Test
70HRB, Rockwell Test Block,
80HR15N, Superficial Rockwell Test
60HRB, Rockwell Test Block,
87HR15T, Superficial Rockwell Test
50HRB, Rockwell Test Block,
84HR15T, Superficial Rockwell Test
70HRA, Rockwell Test Block
70HR45N, Superficial Rockwell Test
35HRA, Rockwell Test Block
67HR45N, Superficial Rockwell Test
31HRA, Rockwell Test Block
61HR45N, Superficial Rockwell Test
63HRA, Rockwell Test Block
55HR45N, Superficial Rockwell Test
56HR30T, Superficial Rockwell Test
69HRE, Rockwell Test Block,
30HRB, Rockwell Test Block,
20HRB, Rockwell Test Block,
74HRF, Rockwell Test Block,
75HRE, Rockwell Test Block,
36HR30T, Superficial Rockwell Test
29HR30T, Superficial Rockwell Test
71HR15T, Superficial Rockwell Test
