A.0.001,0.002mm B.0.002,0.004mm C.0.004,0.008mm D.0.01,0.02mm
A.用途 B.形狀 C.配合松緊程度 D.尺寸大小
A. 變小 B. 沒有變化 C. 變大 D. 變大或變小