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- PDC coal mining drill bit
- We are Chinese professional manufacturer of PDC mining drill bits with high quality and best price. Standard sizes are 25.4mm, 27mm, 28mm, 30mm, 32mm, 35mm, 36mm, 38mm, 40mm, 42mm, 45mm, 48mm, etc.
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Besharp Diamond Co.,Ltd
[Verified]
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Negotiable
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