ASTM A320 L7, Low Temperature, -101℃, Impact Test
ASTM A320 L7, Low Temperature Steel, CVN -101℃, Impact Test
STEELMAX Steel Story
ASTM A320 L7 특징은,
ASTM A320 L7, Low Temperature Steel, CVN -101℃, Impact Test
STEELMAX Steel Story
ASTM A320 L7 특징은,