SC-32S(12.5pf 10ppm) SC-32S(12.5PF) SC-32S(12.5PF+/-20PPM) SC-32S(20PPM/12.5PF) SC-32S(TPF) SC-32S，12.5PF，+/-20PPM SC-32S,7PF,+/-20PPM SC-32S+/-20PPM12.5PF SC-32S-12.5PF SC-32S12.5PF+-20PPM