Hejian Hengji Bit Manufacture Co., Ltd.
Steel Tooth Bits
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IADC 427 tungsten carbide insert bit clay formation -
IADC 427 tungsten carbide insert bit for soft mudstone -
IADC 437 tungsten carbide insert bit for shale and salt formation -
IADC517 17 1/2" API Tricone rock bits/TCI tricone bits -
12 1/2" TCI tricone bits in stock -
TCI tricone drill bits,rock roller bits -
10 1/2'' API TCI rock roller bit / tricone drill bit -
API drill bit with 12 1/4 IADC 637 for oil and gas exploration -
PDC rock bit / core diamond drill for oil drilling -
rock drill button bits -
tricone bit in mining machinery parts -
tricone bit in drill bit -
tricone bit 8 1/2 -
tricone bit smith insert -
iadc code 517/537/637 tricone drill bit -
second hard tricone bits -
12 1/4" 537 tci tricone rock bit for water well drilling -
Tungsten carbide insert rock bit/tricone rock bits with API certificate -
tricone rock bits/Tungsten carbide insert bit
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TCI tricone rock bit/Drilling bits for water well drilling