在治疗头、杆体和连接管中都填充有重金属的填充物。
Fillers of heavy metal are respectively filled in the treatment head, the handle body and the connecting tube.
并在试验的基础上，对杆体的损伤破坏机理进行了分析。
Based on the experiment, the bolt's damage and breakage mechanism were analyzed.
介绍了端面直接铸孔并进行等温处理的新型抗点蚀挺杆体的结构和热处理工艺；
The construction of a new type anti-pitting tappet with a cast hole in its end face and isothermally treated are described.
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