https://www.youtube.com/playlist?list=PLN85UhsHKpa7NZUgulYGCg4QRt3zsr4qc 喜欢我视频的朋友，请帮忙点赞和订阅频道，谢谢！ Do you know the difference between the various levels of sharpening stones? Today, I will show you the difference between 400 mesh and 4000 mesh with vegetable cutting!