Heavy Duty End Punch Retainer High - Tensile Steel with locating dowel holes 1. Material Equivatent to 4140 , SK4 2. Hardness 36 ~ 44 HRC ( 4140 ),56 ...
Heavy Duty End Punch Retainer High - Tensile Steel with locating dowel holes 1. Material Equivatent to 4140 , SK4 2. Hardness 36 ~ 44 HRC ( 4140 ),56 ...