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rotective clothing;Recreational equipment;Safety;Safety requirements;Specification (approval);Sports equipment;Swimming;Swimming aids;Teaching;Testing;Warning notices;Warnings【摘要】: 【中国标准分类号】: Y55【国际标准分类号】: 13_340_70;97_220_40【页数】: 23P.;A4【正文语种】: 英语 | 欢迎光临 世界资料网论坛 (http://bbs.infoeach.com/) | Powered by Discuz! X2.5 |