| 摘要 |
The detachable top frame bar of the frame around the glazing apertures permits glass panes (28,30,32,34) to be inserted. Bars or fillets (22,24,26) between panes can be fitted into the apertures to cover them. - The engagement of the panes and fillets in the grooves is such that they are held in position in the component, and cannot be removed from it when the detachable top bar (14) is inserted and fixed. |
