A.16mm-2mm B.16mm C.16mm±2mm D.16mm+2mm
A.(4mm±0.5mm)×30mm B.(4.5mm±0.5mm)×30mm C.(5mm±0.5mm)×30mm D.(3.5mm±0.5mm)×30mm
A.5% B.7% C.8% D.10%