产品说明：
　　YT29A型气腿式凿岩机是重型气腿式凿岩机，具有高效、低耗的特点，特别适用于铁路、公路、水电等建设施工中使用，也是冶金、煤炭等矿山巷道进及各种凿岩机业的换代产品。
Product description:
YT29A type a air leg rock drill is heavy air leg rock drill, has the characteristics of high efficiency, low consumption, especially suitable for railway, highway, water and electricity, etc. Used in construction, is metallurgy, coal mining roadway in and all kinds of rock drill the replacement of the industry.