SUP10 Spring , DIN 51CrV4 Steel, SPS10 Spring Steel
SUP10 Spring , DIN 51CrV4 Steel, SPS10 Spring Steel
STEELMAX Steel Story
SUP10 Spring 강재는 KS SUP10,
8
03, 2022
18
11, 2021
JIS G 4801 SUP9, Mn-Chrome Spring Steel
JIS G 4801 SUP9, Mn-Chrome Spring Steel
STEELMAX Steel Story
JIS G 4801 규정은 스프링강에 대한 규정으로