Screw rotor assembly
Screw rotor for screw pump device having negative torque on the
Screw rotor machine with specific tooth profile
Screw rotor mechanism
Screw rotor mechanism with specific tooth profile
Sintered rotor for a rotary pump and a manufacturing method for
Slide vane machine
Sliding vane machine having vane guides and inlet opening regula
Sliding vane type rotary compressor
Sliding-vane rotary compressor with specific cylinder bore profi