Excavation in frozen gravel with air picks has the shortage of high labor intensity, low speed, and low efficiency.

在立井冻结砾石层段施工中，人工风镐掘进劳动强度高、速度慢、效率低。

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Mainly used in roadway construction, excavation rock and soil volume, opencast working, blom up holes of explosion & pre-intensity, for water conservancy projects.

主要用于道路建设、土石方开挖及露天开采，水利工程爆破孔、预烈孔的凿岩工序，是理想的高效穿凿设备。

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