A.60%~70% B.70%~80% C.80%~90%
A.PDAC B.PACD C.PDCA
A.5~55 B.10~40 C.50~80
A.±0.5% B.±1% C.±0.25%
A.滚筒 B.托辊 C.电机 D.皮带