2017년 11월 19일Categories 철강 합금강(Alloy)SNCM8, SNCM439, Ni-Cr-Mo Low Alloyed SteelSNCM8, SNCM439, Ni-Cr-Mo Low Alloyed Steel STEELMAX Steel Story SNCM8 은, Old Symbol SNCN439 는, Currently Symbol 입니다. JIS G 4053, SNCM439 KS […]