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Product name: Seiko stainless steel key ring metal key chain key chain car key ring

Molding: flattened or round light

Diameter: 20mm; 25mm; 28mm; 30mm; 32mm; 35mm

Material: Stainless steel (weak magnetic)

 

Note: The key rings of this link are all Seiko stainless steel, which are different from the iron electroplating effect, do not fade and are wear-resistant.

Many customers often think that magnets adsorb stainless steel to verify their advantages and disadvantages and authenticity, and do not absorb magnets, and think they are good and genuine. If the absorber is magnetic, they think they are fake.In fact, this is an extremely one-sided and unrealistic method of discrimination.First of all, there are many types of stainless steel. At room temperature, it can be divided into several categories: 1. Austenitic type; 2. Martensite or ferrite type.The austenite type is non-magnetic or weak magnetic, while the martensite or ferrite is magnetic.Because stainless steel is cold-processed, its structure will also transform into martensite. The greater the deformation degree of cold-processed, the more martensite is converted, the greater the magnetic properties will be.
































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