
Electric And Optical Fibre Cables - Test Methods For Non-metallic Materials - Part 508: Mechanical Tests - Pressure Test At High Temperature For Insulation And Sheaths
出版:Verband Deutscher Elektrotechniker

專家解讀視頻
Electric And Optical Fibre Cables - Test Methods For Non-metallic Materials - Part 508: Mechanical Tests - Pressure Test At High Temperature For Insulation And Sheaths
出版:Verband Deutscher Elektrotechniker
專家解讀視頻