In the second repair cycle, on the basis of changing the profile, the entire row of grinders are replaced with low-hardness materials and the working mode becomes intermittent low pressure.
The second 镟 repair cycle on the basis of the replacement surface, the whole column of grinders are replaced with low hardness material and the operating mode becomes intermittent low pressure.
In the second turning cycle, on the basis of changing the surface, all the grinders are replaced with low hardness materials, and the working mode becomes intermittent low pressure.<br>