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Generally, there are two ways to use a strong magnet to suction, with a little or no suction. This depends on the suction of your magnet, and the most accurate one is the potion solution plus direct current color changing method. You can buy this kind of stainless steel, which is generally about ten yuan, and it is 9 yuan on my side, and then use a small battery and a little wire.
How to use it depends on the manual you bought, and the coloring tested corresponds to the corresponding material.
There are many series of stainless steel anti-theft door products, and the performance is also different, requiring different production processes and technologies, so the price is also different. >>>More
At present, the commonly used stainless steel security door material is mainly based on the grade, but the price is more expensive than that of 201. >>>More
It mainly depends on how your stainless steel material is. It's not a real 304 material. If it's fake, it's easy to rust and rot!
It depends on what board you use, what thickness, ordinary whiteboard stainless steel door more than 400 flat.
1 Jiaji fire door.
2 Kim Tai fire door. >>>More