2018 China New Design Tungsten Carbide Mini Ball - Tungsten Carbide PDC Inserts Drill Bits – Shanghai HY Industry
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2018 China New Design Tungsten Carbide Mini Ball - Tungsten Carbide PDC Inserts Drill Bits – Shanghai HY Industry,
Product Information：
1.for drilling tools
2.durable and high density
3.factory produce
Tungsten Carbide PDC Drill Bit:
1.Direct factory produce
2, reasonable price
3, long working life
4, with flexible sizes
5, ISO guarantee
