A.Φ108mm×4mm B.Φ133mm×6mm C.Φ42mm×3.5mm D.Φ273mm×l0mm
A.3~6mm B.10~16mm C.16~24mm D.D≥24mm
A.允許有深度0.5mm的 B.允許有深度1.5mm的 C.允許有深度2mm的 D.不允許有