Lead vinegar strips
There is a strange thing in the world, called lead vinegar strips. Its quality is specific, and it is a genus of vinegar containing lead in nature.

Lead vinegar strips have a wide range of uses. It is often the key thing in all kinds of tests. For example, the genus of sulfur gas measurement, when the gas touches the lead vinegar strip, the color changes and it is verified. Cover sulfur and lead vinegar phase, causing it to change color, this is one of its wonders.

The method of making lead vinegar strips is also exquisite. Choose a good material, soak it in a suitable lead vinegar liquid, control its time and concentration, so that the strip can absorb lead vinegar as much as possible, and then dry it moderately, before you can use lead vinegar strips.

Those who hold lead vinegar strips should be careful. Lead vinegar is poisonous. If used carelessly, it may hurt the body and skin, or harm health. Therefore, when using it, you must follow its laws and protect it comprehensively.

Although lead vinegar strips are a small thing, they should not be underestimated when used for all things. Good use of them is a help for strength; misuse of them is a great cause. Everyone in the world should understand its nature and use them well to benefit all things.