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)
Shijiazhuang Longway Drill Tools company is a group company established in 1990.We own ourselves Three factories specialize in producing drill pipes, tricone bits, PDC bits , casing pipe, steel....
We are Shijiazhuang Longway Petroleum Drill Tools company , a professional factory of drill pipe, our drill pipe are produced Accord with API 5D latest edition .Has been awarded the certificate for....
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) 2.Drill pipe Accord with API 5D latest edition ....
Accord with API 5D latest edition .Has been awarded the certificate for compliance with standard ISO 9001-2008 GB/ T 19001-2008. Steel Grade: E-75, X-95, G-105, S-135 O. D. Range from 2" ( 60.3mm) ....
1. Drill bits 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) 2.Drill pipe Accord with API 5D....
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) . Accord with API 5D latest edition .Has been awarded....