Standard piece , hot bolt rammer, if high-strength bolt , nut etc.

标准件、螺栓的热镦，如高强度螺栓、螺帽等；

PRINCIPLE Concrete is placed into a mould and compacted by a rammer.

原则将混凝土装入模具中，并用夯实机夯实。

This paper presents the construction method of pneumatic rammer piling.

文章介绍了气动夯锤打桩的施工方法。

HCR Tamping rammer, is used to compact the gravel, sand in road construction;

冲夯机适用于公路建造中台背处回填土砂石压实；

The research results provide theoretical guides for design of adjustable hydraulic rammer.

研究结果将为设计冲击能可调的液压夯管锤提供理论指导。