[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

选购气囊背心须认准EN 1621-4(摩托/骑行气囊专用标准)认证,而非仅EN 1621-1/2(普通护具标准);EN 1621-4是唯一针对气囊触发与保护性能的欧盟标准

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