Mistakes in selection of sandpaper base paper

Petrochemical industry equipment because of long-term exposure in the more serious pollution of the atmospheric environment, and the operation of the equipment because of the long-term erosion of harmful pollutants in the environment, greatly reducing the reliability of the safe operation of the equipment. As a result, the equipment in operation often has some faults, and these equipment faults caused by pollution sometimes cause huge casualties and economic losses. The key is that some of the important equipment in operation can not be maintained by power failure. Even if the equipment can be maintained by power failure, it will bring great economic losses to the enterprise.