A.0.3~0.35mm B.0.25~0.3mm C.0.35~0.45mm
A.0.25~0.3mm B.0.3~0.35mm C.0.30~0.35mm
A.壓縮行程下止點(diǎn) B.進(jìn)氣行程上止點(diǎn) C.壓縮行程上止點(diǎn)