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一种多层狭缝热管阻火器

Release Time:2019-03-09  Hits:

First Author: 喻健良

Disigner of the Invention: 王淑兰,丁信伟,陈彦泽,毕明树

Application Number: CN03133774.0

Authorization Date: 2003-07-20

Authorization Number: CN1483491

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