What is the fastest way to be proficient in brush making after tomorrow?

In the game the day after tomorrow, you can improve your production proficiency by repeatedly making basic equipment. The specific method is as follows:

I. Tools/raw materials:

Huawei Mate 40, HarmonyOS System 2.0, the day after tomorrow? 1.0.236。

Second, the specific steps:

1, Shi Zhuan is the fastest material, just went to Lin Qiu to kill zombies, and stone is the most useless material at present.

2. There was a shortage of steel mines in the early stage, and everyone would pile up a pile of stones in their hands, just brushing their bones.

3. Only when the proficiency is improved can the overall technology at home keep up, otherwise we can only go to the trading city to buy materials.