a.rated power: 5.5PS (4kw) b.max.loosening torque: > 600N.m c.tightening torque adjustable range: 80~170N Our company is a ... , track lifting and lining machine, railway ballast tamper, railway bolt wrench, rail bender , rail gap adjuster, cutting disc, grinding stone, and ... .rated power: 5.5PS (4kw) b.max.loosening torque: > 600N·m c.tightening torque adjustable range: 80~170N·m d.working efficiency ...