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HELP_VARIABLE
SIG
Designation
RTC4
COD
Code
D1
Diameter
mm
D2
Diameter
mm
D3
Diameter
mm
M
mm
L1
Length
mm
L2
Length
mm
MAT
Material
Steel 16Cr Ni 4 UNI 7846
DS
Surface hardness
61 - 63 HRC
RES
Core resistance
110 - 130 kg/mm²
TR
Thermic treatment
Hardening and tempering
FIN
Surface finishing
Grinding and lapping
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