A.4mm B.6mm C.8mm D.12mm
A.800kPa B.900kPa C.1000kPa D.700kPa
A.車(chē)輛三通閥 B.車(chē)輛分配閥 C.機(jī)車(chē)分配閥 D.DK一1型制動(dòng)機(jī)