
MATERIALS USED IN COMMUNICATION CABLES - PART 8: FILLING COMPOUNDS FOR FILLED CABLES
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
MATERIALS USED IN COMMUNICATION CABLES - PART 8: FILLING COMPOUNDS FOR FILLED CABLES
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频