... : GX200 2.Speed: 3600 r/min 3.Power: 4.8 kW 4.ISO9001 NGM - 4.8 diesel rail grinding machine:1:patent2:ISO90013 ... :Technical Applicable scopeNGM - 4.8 type internal combustion rail grinding machine is suitable for ... work efficiency, grinding of good quality, simple operation, and convenient way etc, and is railway works overhaul, maintenance and repair the ...