A.0.2~0.3mm B.0.4~0.6mm C.0.9~1.0mm D.0.7~0.8mm E.2.0~2.5mm
A.2mm B.10~12mm C.7mm D.5mm E.15mm
A.卡環(huán) B.鄰面板 C.支架支點 D.大連接體 E.支托