| 摘要 |
A roll-type protective grille consists of a plurality of spaced-apart parallel rails (1, 2) made of a cuttable material, each having two longitudinal grooves (3, 4). The limbs (5, 6, 8, 9) of U-shaped or Z-shaped joints (7, 19) made of non-cuttable material can be inserted in the grooves. The ends (16, 17) of the limbs lie closely adjacently or in contact with the subsequent joint. <IMAGE> |
