说明: 适用于各类船舶。大中型船舶应选用B型、C型。大型船建议选用C型。 Remarks: It is suitable for vessels in inland water.Medium and large vessels are suggested to choose type B and C.Large vessels are suggested to choose type C.
说明: 适用于各类船舶。中小型船舶建议选用A型、B型。 B型不带上轴瓦。 Remarks: It is suitable for inland water vessels.Small and medium vessels are suggested to choose type A and B.Type B has no upper bearing.