Unverified88% confidenceDecision RuleTime unknown
修补需二次加工（打磨、钻孔、攻丝）时选择金属填充型环氧（含铝/铁粉），固化后邵氏硬度D≥80，可上机床加工；纯胶体型硬度低易糊砂纸
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88%
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Long-term
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