NLB - 600 type internal combustion bolt wrench is suitable for railway line sleeper bolt and
nut of unscrew and fastening operation. This machine is double sleeve and homework,
reverse torque large in 600 n m., can unscrew various corrosion bolt, the working efficiency
is high. At the same time change impact torque for static torque, make the operation of rail
fastener pressure error is small; Reversing agile, centralized control, convenient operation,
it is a lot of multifarious pine,bolt operation indispensable necessary equipment.