Nati - norm
- National Board of Boiler and Pressure Vessel Inspectors
- National Fire Protection Association
- National Oxygen and Acetylene Association
- National Welding Supply Association
- natural air cooling
- naval brass
- naval bronze
- NBBPVI
- neck
- necking
- needle
- needle valve
- needle-like
- negative carrier
- negative electrode
- negative polarity
- nerve structure
- net structure
- net-shaped
- network structure
Страницы
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