Ụgwọ nke ụlọ ọrụ Tianjin Grand Construction Machinery Technology Co., Ltd.
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grand@grandbit.cn
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Ụlọ
Ngwaahịa
Ụdị ngwaahịa
Ngwuputa Bits
Tricone Bits
DTH hama
PDCBits
Reamer
HDD Bits
Roller Bit Core Barrel
Ngwa Platform
Ngwaahịa Wellhead
Ngwa njikwa nke ọma
Ngwaahịa Nnwale elu
Ngwaahịa egosipụtara
13-3/4" IDC 127 TCI Tricone Bit maka ...
17 1/2" IDC 115/215 TCI Tricone Bit ...
9 5/8" IDC 527/537 TCI Tricone Bit f...
5 1/4 ″ IDC 637/537 Obere Nha
8 1/2" IDC 637 TCI Tricone Roller Bi...
6 1/2" IDC 517 Tricone Bit maka Nkume ...
9 1/2" IDC 437 Tricone Rock Drill Bi...
22''IADC 617 TCI Tricone Drill Bit f...
11 3/4 '' IDC 537 Tricone Bit High-Pe...
6 1/4" IDC 617 Ọrụ dị elu TCI...
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