- formex wire
- magnetic recording wire
- magnetic sound recording wire
- 磁性: magnetism; magnetic; magneti ...
- 录音: sound recording; film record ...
- 钢丝: steel wire; wire; wire-steel
- 磁线,磁导线,磁性钢丝;录音钢丝。: magnetic wire
- 磁录音钢丝: magnetic recording wire
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