The conical slotted type is generally used for large crushing hammers phi; After heat treatment, the core hardness of slotted drill rod is enhanced, so the wear resistance is better. The slotting in th... MORE>>

The conical slotted type is generally used for large crushing hammers phi; After heat treatment, the core hardness of slotted drill rod is enhanced, so the wear resistance is better. The slotting in th... MORE>>

The conical slotted type is generally used for large crushing hammers phi; After heat treatment, the core hardness of slotted drill rod is enhanced, so the wear resistance is better. The slotting in th... MORE>>

The conical slotted type is generally used for large crushing hammers phi; After heat treatment, the core hardness of slotted drill rod is enhanced, so the wear resistance is better. The slotting in th... MORE>>

The tamping type uses drill rod to make it fall freely repeatedly to tamp the foundation or filling soil and stone to improve its compactness.... MORE>>