
Electric and optical fibre cables - Test methods for non-metallic materials Part 509: Mechanical tests - Test for resistance of insulations and sheaths to cracking (heat shock test)
出版:International Electrotechnical Committee

专家解读视频
Electric and optical fibre cables - Test methods for non-metallic materials Part 509: Mechanical tests - Test for resistance of insulations and sheaths to cracking (heat shock test)
出版:International Electrotechnical Committee
专家解读视频