高精度丝杠车床
high precision leadscrew cutting lathe
高速滚珠丝杠
high speed ball screw unit
高速滚珠丝杠副
high speed ball screw unit
滚珠丝杠副内螺纹
internal thread of ball screw
滚珠丝杠进给系统
ball screw feeding system
Ball-screw Drive Systems
ball-screw drive mechanism
滚珠丝杠螺母副
ball screw pair
the ball bearing lead screw fit