28mm 42mm 43mm Coal Bit
Specifications
1.tungsten carbide drill bit,coal mine drill bit2.low price and supreme quality
3.manufacturer
4.Certified by ISO9001
28mm 42mm 43mm coal bit
Product Description:
Applications:
Apply to the anchor-network support hole drilling in coal mine, hydraulic project. Etc.
Characteristics:
1. High wear resistance and impact-resistance toughness.
2. To repeat repair & greaning are not necessary, long drill life.
3. High efficiency could be promoted sharply in penetration of high-medium hard rock formation.
4. Labour intensity could be reduced.
5. Rock formation to be suitable t: F=4-12
We can manufacture all kinds of bits and shells according to customer's special requirement.
Any requirement please contact us, we'll do the best service for you. Hope we can establish a good business relationship
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