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liuxilin1215 发表于 2019-3-5 10:41:34

BS EN 1155-1997 (2006) Building hardware — Electrically powered hold-open devi

BS EN 1155-1997 (2006) Building hardware — Electrically powered hold-open devices for swing doors — Requirements and test methods

admin 发表于 2019-3-15 10:34:06

谢谢您的分享,金币已奖励!

hgundas 发表于 2019-9-28 06:20:29

謝謝樓主的分享！！！！！

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