1- Safe and Efficient 2-ISO9001;2000 and GC Quality Certificate 3.High reliability Hand hold Rock Drill 1-Characters:1.high quality materials 2. scientific forging3.heat treatment 4.safty and economy.2-Application 1.widely used in coal, metallurgy, railway, transportion,2.water conservancy, infrastructure and defense engineering in the level of all kinds of rocks,3- Specification ...
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