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美国DOT认证
DOT 认证是强制性认证,这意味着所有在美国销售的机动车及配件产品,都毫无例外地必须通过 DOT 认证,贴上 DOT 标志。经过三十多年的发展,它早已从最初仅在美国国内实行,逐步扩展到整个北美地区。如今,在北美消费者眼中,模压在胎侧上的 DOT 代码 ...
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