| |||
| резьба NPSM (National Standard Free-Fitting Straight Mechanical Pipe Thread ivvi) | |||
| трубная цилиндрическая крепежная внутренняя резьба (из книги Климзо "Ремесло технического переводчика" YGA) | |||
| Английский тезаурус | |||
| |||
| joints; national pipe straight thread for mechanical joints | |||
| national standard straight pipe threads for mechanical joints | |||
| American National Pipe Straight Mechanical Joint | |||
