
MATERIALS USED IN COMMUNICATION CABLES - PART 7: HALOGEN FREE FLAME RETARDANT THERMOPLASTIC SHEATHING COMPOUNDS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
MATERIALS USED IN COMMUNICATION CABLES - PART 7: HALOGEN FREE FLAME RETARDANT THERMOPLASTIC SHEATHING COMPOUNDS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻