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Hello everyone

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I am summer from China

welcome to my channel


In the last video, I introduced:

Don't just listen to the price, listen to the sound

In this video, I will give you an introduction:

One simple way to identify Chrome steel Gcr15


Good materials have different sound.

You compare the price of carbon steel and Chrome steel, but at the same time compare their quality.


Let's listen to the sounds


This sound,is very brittle, it is Chrome steel

The greater the rigidity, the crisper the sound

Listening to this, it is low, it is carbon steel


Hope when you choose bearings

My video can provide you with a help.


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