A.0.2-0.7mm B.0.3-0.8mm C.0.4-0.9mm D.0.5~1mm
A.0.2~0.4mm B.0.1~0.3mm C.0.3-0.5mm D.0.1-0.6mm
A.應(yīng)預(yù)報(bào)廢 B.應(yīng)用油石磨平加以消除 C.應(yīng)更換新件 D.應(yīng)鍍鉻修復(fù)