A.平行牽引桿裝置 B.中央斜單桿推挽式牽引桿 C.中間推挽式牽 D.擺式連接裝置
A.0.65mm B.0.75mm C.0.85mm D.0.95mm
A.5~22mm B.6~22mm C.7~22mm D.8~22mm