... tamper, railway bolt wrench, rail bender , rail gap adjuster, cutting disc, grinding stone, and etc .Since its foundation in 1992, has ... /m rail acuities 120 s4, wafer grinding wheel used times of 50 kg/m or use four 60 kg/m or ... .Large matching power and quick cutting speed.5.High precision of positioning, good quality of cutting section. NQG - 5 iii diesel cut rail machine