What is the life-saving knife for?

This is a simple tool that can be used for self-defense and rescue in times of crisis. It doesn't have as many functions as the Swiss Army Knife, but it is unique in China. Because our folk ironmaking forging is limited and we don't have the conditions for machining, it is very simple, but it is very practical. I have seen this kind of tool since I was a child. My uncle keeps this tool in his pocket when he goes out. It is very sharp. This is a simple tool that can be used for self-defense and rescue in times of crisis. It doesn't have as many functions as the Swiss Army Knife, but it is unique in China. Because our folk ironmaking forging is limited and we don't have the conditions for machining, it is very simple, but it is very practical. I have seen this kind of tool since I was a child. My uncle keeps this tool in his pocket when he goes out. It is very sharp. This is a simple tool that can be used for self-defense and rescue in times of crisis. It doesn't have as many functions as the Swiss Army Knife, but it is unique in China. Because our folk ironmaking forging is limited and we don't have the conditions for machining, it is very simple, but it is very practical. I have seen this kind of tool since I was a child. My uncle keeps this tool in his pocket when he goes out. It is very sharp. This is a simple tool that can be used for self-defense and rescue in times of crisis. It doesn't have as many functions as the Swiss Army Knife, but it is unique in China. Because our folk ironmaking forging is limited and we don't have the conditions for machining, it is very simple, but it is very practical. I have seen this kind of tool since I was a child. My uncle keeps this tool in his pocket when he goes out. It is very sharp.