49HRG, Rockwell Test Block,
97HRF, Rockwell Test Block,
81HRE, Rockwell Test Block,
99HRE, Rockwell Test Block,
70HR30T, Superficial Rockwell Test
56HR30T, Superficial Rockwell Test
96HR15Y, Superficial Rockwell Test
49HR45N, Superficial Rockwell Test
43HR45N, Superficial Rockwell Test
67HR45T, Superficial Rockwell Test
37HR45N, Superficial Rockwell Test
53HR45T, Superficial Rockwell Test
31HR45N, Superficial Rockwell Test
43HR45T, Superficial Rockwell Test
25HR45N, Superficial Rockwell Test
34HR45T, Superficial Rockwell Test
78HR30N, Superficial Rockwell Test
23HR45T, Superficial Rockwell Test
69HR30N, Superficial Rockwell Test
95HRB, Rockwell Test Block,
60HR30N, Superficial Rockwell Test
80HRB, Rockwell Test Block,
63HR30T, Superficial Rockwell Test
