... in variours railway maintenance equipments in China.. Products include rail cutter, rail grinder, rail drilling machine, track lifting and lining machine, railway ... ballast tamper, railway bolt wrench, rail bender , rail gap adjuster, cutting disc, grinding stone, and etc . ... 43, cutting time 60 kg/m rail, acuities 120 s4, wafer grinding wheel used times of 50 kg/m or use ...