德国SIEMENS西门子执行机构,SKP10.110B27，SKP10.111B27，SKP10.111B27，SKP20.110C27，SKP20.111B27,SKP50.110C27SKP50.111C27SKP50.111C17SKP50.111C27R,SKP10.123B27SKP20.110B17SKP20.111B17SKP20.110B27SKP11.211A27)