8.5020.8541.5000规格参数
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8.5020.8542.1000 8.5020.8542.1024 8.5020.8542.2048 8.5020.8542.3600 8.5020.8542.5000 8.5020.8544.0100 8.5020.8544.1000 8.5020.8544.1024 8.5020.8544.2048.EX 8.5020.8544.4096