Does the questioner want to ask "How to seal the metal tracheostomy casing"?

1. First, prepare appropriate tools and safety equipment, determine the location of the pipe blockage according to the location where the pipe needs to be blocked, and use a multimeter or other tools to check whether the current is cut off.

2. Secondly, use air cutting to cut off the casing. Pay attention to the cutting groove in the cutting direction. Make a hole on the top of the casing that is slightly smaller than the diameter of the exhaust pipe.

3. Then, select a suitable pipe plug, insert it into the hole, and fix the pipe plug at the hole with screws or other means to ensure that it fits tightly.

4. Finally, check whether the pipe plugging device is firm, and turn on the current to test whether it is working properly. When performing gas cutting metal casing plugging, be sure to pay attention to safety and wear protective equipment to prevent sparks from occurring. may cause accidents.