A.15 B.20 C.25 D.30
A.0.5 B.0.8 C.1 D.1.5
A.26mm≤輪緣高度≤33mm B.26mm≤輪緣高度≤34mm C.27.5mm≤輪緣高度≤33mm D.27.5mm≤輪緣高度≤34mm