BQ NQ HQ PQ wire-line coring drilling pipe

BQ NQ HQ PQ wire-line coring drilling pipe
1.Direct-coupled pipes
2.Bulk heat treatment
3.Internationa standard

BQ NQ HQ PQ wire-line coring drilling pipe 

 

Specification  :                BQ           NQ            HQ

 

OuterDiameter(mm) :    55.6        70.15          89

 

InnerDiameter(mm) :      46            60           77.8

 

Lenth(m)  :              3 /2 / 1.5    3 /2 / 1.5       3 / 2/ 1.5

 

ThreadStandard  :  INTERNATIONAL STANDARD

 

MaterialQuality    :XJY850

 

Heat treatment   :  BULK HEAT TREATMENT