KS C7659-2013

sigh007 发表于 2013-12-27 20:35:28

KS C7659-2013
LED module for channel letter signs. Safety and performance requirements

liuxilin1215 发表于 2013-12-27 20:39:53

非常给力，谢谢楼主的分享！！！:lol

wzg_1969 发表于 2014-6-19 07:44:25

LED module for channel letter signs. Safety and performance requirements

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