输送机链传动链轮
conveyor chain drive sprocket
内轴凸轮轴装配
Axle shaft of pump assembly
喷油泵凸轮轴凸角
fuel injection pump camshaft lobe
前凸轮轴轴承连接处
front camshaft bearing joint location
前凸轮轴轴承润滑油孔
front camshaft bearing oil hole
凸轮传动对焊机
butt welding machine with cam drive