2021/05/28 |
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PCN(产品规格变更通知)
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The external flame resistance category will be changed from "B or C or B" to "C". External flame resistance confirms the maximum flame extinguishing time after exposing the product to the flame from the outside and keeping the flame away. There is a category for external flame resistance, and at the beginning of commercialization, we acquired category "C" and sold it. Since then, we have added category "B" without changing the product specifications, but this time we will change it to "C" at the beginning of commercialization. |