Unverified82% confidenceDecision RuleTime unknown
承重型防坠落加固件（如儿童防护栏底座）板厚应≥2.0mm冷轧钢并配M6以上膨胀螺栓，纯不锈钢因同厚度屈服强度偏低反而不如镀锌钢板抗形变
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