When titanium alloy keychain comes into contact with other metal objects, it is easy to produce noise. For example, when a key chain rubs against clothes or collides with a keyhole, it will make a sharp metallic sound. This may cause some consumers discomfort and even affect their mood;
Titanium alloy key chains are durable, but they are also easy to scratch. Keys will come into contact with other items in daily use, such as wallets, mobile phones and other keys. Scratches may reduce the beauty and appearance quality of the key chain.