SNCM447 QT

2020년 4월 27일

SNCM9, SNCM447, KS D 3867, Low-Alloy, R-Bar

SNCM9, SNCM447, KS D 3867, Low-Alloy, R-Bar STEELMAX Steel Story   SNCM9 — 이전 규격이고, 지금 사용하는 규격은 SNCM447 입니다. 탄소량 Nominal 0.47% 이고, Nickel, Chromium, […]
SNCM9, SNCM447, KS D 3867, Low-Alloy, R-Bar
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