... 3.First level sup ZG-32 Electric Rail Drilling Machine:1.ISO 9001 2.Patent 3.First ... include rail cutter, rail grinder, rail drilling machine, track lifting and lining machine, railway ballast tamper, railway bolt wrench, ... very high reputation. ZG-32 Electric Rail Drilling MachineApplication:Special tool for processing bolt connectors or ... 280mmf.total weight: 28kg operational Rail Drilling Machine