AlSi7.5¾T½u¤Æ¾Ç¦¨¤À¦p¤U¡]%¡^¡G
Si:0.8~1.2
Fe:0.50~0.8
Cu:0.10
Mn:0.05
Mg:0.01
Cr:0.20
Zn:0.05
Al:Êe¶q