It is understood that: due to the comprehensive inspection of mining enterprises in the near future, mines in many areas have been shut down and stopped production. The mining is shut down and the supply of raw materials is limited. It is expected that in the near future, there may be money and no purchases. Even if the mine is qualified for mining, the mining cost is greatly hardened due to the qualification of mining. It is expected that the related raw materials will also be greatly improved... It is understood that: Due to the comprehensive inspection of mining enterprises in the near future, mines in many areas have been shut down and stopped production. The mining is shut down and the supply of raw materials is limited. It is expected that in the near future, there may be money and no purchases. Even if the mine is qualified for mining, the mining cost is greatly hardened due to the qualification of mining. It is expected that the related raw materials will also be greatly improved...