A.0.2-0.4B.0.4-0.6C.0.6-1.0D.1.0-2.0
A.僅是用錐形連接B.僅是用螺紋連接C.錐形連接和螺紋連接D.圓形連接
A.1.2-1.4B.1.4-1.8C.1.2-1.8D.1.4-1.6