A.0.5~1.0mm B.1.0~1.5mm C.1.2~2.0mm D.1.5~2.0mm E.0.1~0.2mm
A.0.5mm B.1.0mm C.1.5mm D.2.0mm E.2.5mm
A.1mm B.1~1.5mm C.2mm D.3~5mm E.4~5mm
A.美觀 B.穩(wěn)定 C.固位 D.發(fā)音 E.咀嚼