Large size block material: when the side length is greater than 40cm, or the mounting height exceeds 1m, the installation method can be adopted:
1) Drilling and grooving: Before installation, the veneer should be drilled with a bench drill according to the design requirements, and the wooden frame should be nailed in advance to make the drill directly face the upper end of the board, and drill holes on the upper and lower sides of each board. Punch two holes on each side at 1/4 of the width of the slab. The hole diameter is 5mm, the depth is 12mm, and the distance between the holes is 8mm from the back of the slab (referring to the center of the drilled hole). For example, when the width of marble, prefabricated terrazzo and polished custom terrazzo flooring is large, the number of holes can be increased. After drilling, use a steel chisel to lightly cut a groove on the hole wall facing the back of the stone slab, about 5mm deep, together with the holes to form an elephant's nose, in order to bury the copper wire.
If the veneer specifications are large, especially prefabricated terrazzo and polished custom terrazzo flooring slabs, when the lower end is not easy to tie the galvanized lead wire or copper wire, you can also use the portable light and thin ( 4～5mm) The grinding wheel has a groove (groove length about 3～4cm, groove depth about 12mm) at the top and bottom of the 1/4 of the board height according to the regulations. This method can also be done directly at the mounting site.
