sanmaosjy 发表于 2017-11-9 11:17:58

EN 13138-3:2007(E)Buoyant aids for swimming instruction -

EN 13138-3:2007(E)Buoyant aids for swimming instruction -
Part 3: Safety requirements and test methods for swim seats to be worn

admin 发表于 2017-11-9 14:09:22

谢谢您的分享,金币已奖励!
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