| 摘要 |
This module can be fitted into others and comprises a vertical omega-shaped section 1 and horizontal support plates 3 positioned at the lower and upper ends of the section to which they also add stiffening. The blocks must be turned through 180 DEG in relation to a vertical axis 7 passing through either of their two centres of symmetry 6 in order to place one course precisely on top of another in a wall. <IMAGE>
|
