A.±(0.5%~1%) B.0.5%~1% C.0.25%~0.5% D.±(0.25%~0.5%)
A.2次/120% B.2次/115% C.3次/115% D.2次/110%
A.6/2/3 B.6/3/6 C.6/2/6 D.12/2/3