CNC Machine Arbor Pull Studs Bolts Precision Retention Knobs BT40 45 60 90 degree 数控 高精度 刀柄 拉钉

https://b2conlinestore.com.my/b2conlinestore/CNC-Machine-Arbor-Pull-Studs-Bolts-BT40-45-60-90-degree-Retention-Knobs-112176