The PGM-48 rail grinding train is manufactured by our company and HTT company of America jointly, it is mainly used to resurface track and to remove corrugations and other surface defects on rails.

• 该车是我公司与美国HTT公司合作生产的铁路大型养路机械设备，主要用于消除钢轨表面磨损、变形和其它缺 陷。