... drilling bucket, drilling auger, suitable for scree, frozen earth, rock drilling heavy duty. ENTERPRISE CULTUREOur mission: To be a ... company majored in piling machinery, located in National High-tech Development Area·LUGU Changsha, Hunan province, China.Hunan Osaint ... all kinds of complex geologic condition such as medium weathered rock, indurated sandstone, gravel and etc. in China, Eurpean ...