GRILLE FOR CRIME PREVENTION DIFFICULT TO BREAKE

摘要

Background technique 1. It more specifically the present invention relates to a security window, is used to prevent external disturbance by a face-port, and is difficult to the technical field of damage security window. Safety grids have the reinforcing member formed by reinforcing bar, to enhance the function of security window and provide a safety grids, can be easily manufactured in a minimum cost.