Per le pareti con telaio in metallo o schermatura in metallo, accertarsi di utilizzare un tubo incassato nella parete e un copriforo da muro nel foro passante per evitare calore, scosse elettriche o incendi.
to the walls with metal frame or metal shielding, be sure to use a pipe embedded in the wall and a hole plug from the wall in the hole to prevent heat, electric shock or fire.
For walls with metal frame or metal shielding, be sure to use a tube embedded in the wall and a wall hole plugs in the holes to prevent heat, electric shocks or fire.
For the walls with a metal frame or metal shielding, be sure to use a pipe embedded in the wall is a hole from the wall into the through-hole to avoid heat, electrical shock or fire.