What did the ancient Chinese use to shave

What did the ancient Chinese use to shave?

Modernly it is called "hairdressing", but in the old days it was called "shaving".

Ancient Chinese people talked about growing a beard, but they also shaved their heads, faces and beards.

The ancient Chinese shaved their heads, faces and beards with the traditional Chinese razor.

The traditional Chinese razor: it is oven beaten, hardened and steeled.

Style of razor: the ancient razor was half-moon shaped, had a long handle, and the sheath was connected to one end of the blade with a shaft, like a shrunken guillotine.