Unverified92% confidenceDecision RuleTime unknown
背脊甲CE认证分Level 1和Level 2，测试标准EN 1621-2：L1透过冲击力≤18kN，L2≤9kN，摩托车机车、赛道运动应选L2；滑雪、骑行、山地车L1即可满足需求
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