Unverified75% confidenceDecision RuleTime unknown
头带材质用不锈钢或金属骨架比全塑料款抗折断，塑料头带在反复折叠开合1-2年后易在铰链处断裂，工业和户外高频使用应选金属骨架
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75%
Confidence
Long-term
Relevance
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