English to Russian Tech/Engineering Construction / Civil Engineering Маскирующая лента для анодирования

Помогите перевести, пожалуйста: internal and external signals

Описание маскирующей ленты для анодирования.

Контекст:

3M Anodization Masking Tape 8985L can replace complex, messy liquid masking and the unpleasant odors involved. Suitable for a wide range of industries such as transportation, electronics, office equipment, shop fitting and both internal and external signals.