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See Chinese contents: JB/T 6289-2005 JB/T 6289-2005: Internal combustion engines - Casting aluminium pistons - Metallographic inspection
This Standard specifies the metallographic-structure grade-level, inspection and examination methods for internal combustion engines casting eutectic aluminumsilicon alloy pistons AND aluminum-silicon-copper-magnesium (Al-Si-Cu-Mg) alloy pistons.
