3.3545¾T¦Xª÷ªO

3.3545¤Æ¾Ç¦¨¤À¦p¤U¡G

Si:0.40

Fe:0.5

Cu:0.10

Mn:0.20~0.7

Mg:3.5~4.5

Cr:0.05~0.25

Zn:0.25

Ti:0.15

Al:Êe¶q