Roll grooving apparatus

Roll grooving apparatus

Roll grooving apparatus

Roll grooving apparatus

Roll grooving apparatus

Roll threading apparatus for threading end blank for metal drum

Roll-forming die for helical gears

Roll-forming dies in a cross-rolling machine

Roll-hardening device pertaining to a roll-hardening machine...

Roll-hardening machine for crankshafts

Roll-hardening machine for crankshafts

Roll-type thread cutting die

Roller cage

Roller cage for a deep rolling work roller

Roller milling tool unit for a milling machine tool

Roller screening apparatus

Roller tool for forming grooves in pipes

Rolling annular workpieces

Rolling apparatus

Rolling apparatus and rolling method