（1）. The SD22C coal bulldozer is a modified form of the SD22, featuring advanced performance,
（2）. high reliability, low fuel consumption and convenient maintenance. The SD22C has a high-capacity coal-dozing blade, and is equipped with an engine intake pre-filtering device, helping
（3）. adapt it to transferring, paving and stacking operations often performed in coal mines and
（4）. electricity coal yards.