BS EN 50265-2-2:1999 Common test methods for cables under fire conditions-Test for resistance to vertical flame propagation for a single insulated conductor or cable-Part 2-2:Procedures-Diffusion flame - 简版

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楼主
2019-09-19 08:43:32
tjdeanl
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2023-11-07 14:54:04
中文版的有吗