Hot selling!!!BQ NQ HQ PQ drilling pipes for wire-line coring
USD $1 - $200 /Rod
Min.Order:10 Rods
Zhengzhou Hanfa Imp & Exp Trading Co., Ltd.
BQ NQ HQ PQ drilling pipes for wire-line coring
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