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¾T Al():¾l¶q
Öº Si: 0.40
ÅK Fe: 0.7
ȃ Cu:5.0~6.0
¾N Zn: 0.30
Öº+ÅK Si+Fe: 0.40
¹] Pb:0.2~0.6
¹c Bi:0.2~0.6
¥¼«ü©wªº¨ä¥¦¤¸¯À:¨CºØ: 0.05;¦Xp: 0.15