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61347-1:15.1 Wood, cotton, silk, paper and similar fibrous material 3 E* T6 w% y1 m1 [Wood, cotton, silk, paper and similar fibrous material shall not be used as insulation, unless # x- O! E$ X3 G0 B* C/ ]9 simpregnated.作者: valyxu 时间: 2023-5-8 17:06
如果青稞纸设计放在灯具电源PCB板下面,这种情况下,青稞纸是否需要做针焰呢 ?作者: liuqiuhong8888 时间: 2024-3-21 11:43
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