Tianjin Grand Construction Machinery Technology Co., Ltd.
+86 15922240428
grand@grandbit.cn
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Dhachaigh
Bathar
Uidheam àrd-ùrlar
Roinnean-seòrsa bathar
Pìosan drile
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DTH ùird
PDCBits
Reamair
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Uidheam àrd-ùrlar
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Toraidhean deuchainn uachdar
Bathar sònraichte
13-3/4" IADC 127 TCI Tricone Bit airson ...
17 1/2" IADC 115/215 TCI Tricone Bit ...
9 5/8" IADC 527/537 TCI Tricone Bit f...
5 1/4" IADC 637/537 Drile Meud Beag ...
8 1/2" IADC 637 TCI Tricone Roller Bi...
6 1/2" IADC 517 Tricone Bit for Rock ...
9 1/2" IADC 437 Tricone Rock Drill Bi...
22'' IADC 617 TCI Tricone Drill Bit f ...
11 3/4'' IADC 537 Tricone Bit High-Pe...
6 1/4" IADC 617 TCI Àrd-choileanadh ...
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