Metallic honeycomb shielding vent is a fullywelded structure, specially designed and manufactured for shielding room andmicrowave dark room. Patented manufacturing technology ensures a continuous andstrong electrical connection and mechanical connection between all interfacesof the honeycomb core and the frame form. This series of products are usuallywelded or soldered to the shielding room, and can also be installed withscrews. The surface is treated with anti-rust coating.