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Feilong Drilling Spare Parts Company was established in 1983. Our company can supply drill bits and PDC bits which used on the oilfield and water well, the sizes: 5 7/8

Feilong Drilling Spare Parts Company was established in 1983. Our company can supply drill bits and PDC bits which used on the oilfield and water well, the sizes: 5 7/8"--17 1/2"(both insert drill bits and steel tooth bit), if you need, please do not