Rope rollers, pulleys, mountings and assemblies for colliery track haulage, Specification for vertical spindle pulleys, mountings and assemblies— 12 стр.
Rope rollers, pulleys, mountings and assemblies for colliery track haulage, Specification for parallel barrel rollers, mountings and assemblies— 18 стр.
Rope rollers, pulleys, mountings and assemblies for colliery track haulage, Specification for parallel barrel rollers, mountings and assemblies— 18 стр.