How is the stainless steel screen installed in the wind pipe?
It is the sealing gasket, the two pipes connecting the place. Prevent leakage of wind.
It is to install the mesh as a piece of flanged flanged, which is not so easily damaged, it is steel products
The wind tube walks the air, the resistance is not very big, the stainless steel hole is bigger, you fear the damage you use flat iron to weld a windpipe border, the stainless steel screen. Attach it to the top, and take a hole in the four corners, and attach it to the flange. Remember to stick the insulating board on both sides, the thin seal