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Product Paramenters：
Suitable for guided drilling in the formation of hard soil , high weathered rock , sandstone and pebble .
The bullet teeth are made from high-quality allow material to ensure wear resistance , improve the construction efficiency ; The inlayed alloy teeth in the body can effectively promote the gauge ability .
Product Paramenters：
Suitable for guided drilling in the formation of hard soil , high weathered rock , sandstone and pebble .
The bullet teeth are made from high-quality allow material to ensure wear resistance , improve the construction efficiency ; The inlayed alloy teeth in the body can effectively promote the gauge ability .
