$/7 $5 %(,76 67$+/ &2/' :25. 722/ 67((/ · 2020. 6. 26. · frxqw wkh yd ulrxv wuhvv vfrq...

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~ 1.2550~ 60WCrV7

~ S1 ~ T41901 ~ 6ChV2S

~ F5242~ 60WCrSi8

(~ 58WCr9 KU) ~ 55WC20

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