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Question:

How can the stainless steel screws distinguish true from false?

How can the stainless steel screws distinguish true from false?

Answer:

Using hydrochloric acid drops to screw over ten minutes, look at is not a drop of hydrochloric acid black or rust, if the above two situations, which further proves that the stainless steel material is not 304 or better.
You can use a magnet to see whether the screws will be adsorbed, can be adsorbed, it is not true stainless steel screws;

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