| 摘要 |
FIELD: construction. ^ SUBSTANCE: method includes fixation of room door frames in opening with filling of gap between frame and opening side by sealing foam. Prior to gap filling, box is placed on heads of self-drilling screws screwed into opening sides with the help of metal plates with pear-shaped opening, which are screwed to box at outer side. ^ EFFECT: rigid fixation of box to opening in direction from opening end to door leaf. ^ 7 dwg |
