With the experience of cutting Nephrite Jade last time, Qi Yun generally understood the whole process of stone cutting.
For stones completely covered by stone skin like this, you first need to open a window to determine the general situation under the skin and see if it's worth continuing to cut.
If the inside looks good after opening the window, then peel the whole thing and further plan the cutting method and position to preserve the stone's value to the greatest extent.
If you open several windows in succession and don't see any flesh, then it might not be worth it to waste any more time and energy; just use the machine to cut it in one stroke and see the results.
This dark-skinned young man looks quite young, but his skills are extremely proficient. The grinding machine swings in his hand continuously, and soon, he opens a small window.
