20YRS
TZOONG CHENG INDUSTRY CO., LTD.
Products
Return Pin
SUJ-2 Return Pin
TD-4
MATERIAL : SK2 SUJ-2
(1)STEEL IMPORTED FORM JAPAN
SHORT TYPE MADE WITH HIGH-SPEED CNC LATHE
LONG TYPE MADE WITH HOT FORGE IN HEAD PART,
HARDNESS HRC 58-60° HIGH FREQUENCY TREATMENT IN SURFACE.