- coredrilling
- зенкерование
Англо-русский словарь по машиностроению. Академик.ру. 2011.
coredrilling
Смотреть что такое "coredrilling" в других словарях:
Penetration (firestop) — A penetration, in firestopping, is an opening , such as one created by the use of a cast in place sleeve, in a wall or floor assembly required to have a fire resistance rating, for the purpose of accommodating the passage of a mechanical,… … Wikipedia
