Aren't Siemens washing machine liners all stainless steel these days?

Yes. Siemens washing machines, although after 80 years of development, but in the structure has not changed much, basically stainless steel inner tub, using mechanical program controller, its shell after phosphating, electrophoresis and painting triple treatment process, its service life can be up to 15 years, much higher than the service life of the wave wheel of plastic parts.