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[国外标准] IEC 60227-1:2024 Polyvinyl chloride iulated cables of rated voltages up to and including 450/750V Part 1

P:2024-04-08 13:21:49

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IEC 60227-1:2024 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V Part 1 General requirements.pdfimage.png

pressure dam - 压力隔潮层(通信电缆的) (0) 投诉

P:2024-04-09 20:19:22

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lagging - 绝缘层材料,(水管等的)保温层,落[滞, 移]后,迟延 (0) 投诉

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