缸盖上装有气门、气门弹簧和摇臂轴上的摇臂，推杆推动这部分气门传动机构工作。
The cylinder head carries the valves, valve springs and the rockers on the rocker shaft, this part of the valve gear being worked by push-rods.
我公司现有产品包括气门导管、气门摇臂和预燃烧室、气门座、摇臂轴总成各大系列品种。
We currently offer five main product lines of valve guide, rocker arm, precombustion chamber, valve seat insert and rocker shaft.
气门摇臂，摇臂轴，摇臂总成，气门导管，凸轮轴盖。
Rocker arm, Rocker arm shaft, Rocker assembly, Valve guide tube, Camshaft bearing Cap.
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