... specialized 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 ...