Longway has authorized by ISO 9001, NS-1 and Russia GOST RTN . it is able to process drilling tools according to standard DS-1 under a full system of production design and quality control.. our oil drill rod have been tested by the third party, such as China national petroleum pipe research insititue and Russia petroleum pipe quality control center, the quality is stable and reliable.
Place of Origin.....................Germany
Model Number........................TU1245
Weight ....................................3.5
Grade......................................HMS
Material..................................Carbon Steel,1308 PDC cutters
Shape.....................................ASH