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LOW PRESYON NG HANGIN HAMMERS Russian type (KNSH series)
Butones ng Retrac Thread
Reverse Circulation Drill Pipe (RC Drill Pipe)
R25 33mm Semi-Balistikong tip
R32 45mm Semi-Balistikong tip
R32 89mm naka-thread na tip
T38 64mm naka-thread na tip
T45 76mm naka-thread na tip