knock pin 顶出销 ; 定位销 ; [机] 止顶

piston pin knock 活塞销爆击

knock out pin 打杆

knock-out pin 顶出销

knock-out pin plate 顶出销托板

punch knock-out pin 凸模推杆

knock k pin 顶出销

cam gear knock pin 凸轮齿轮钻止销