• roller bit drill bit  for air lift reverse circulation drilling rcd drilling D1500,D1800 D2000MM

roller bit drill bit for air lift reverse circulation drilling rcd drilling D1500,D1800 D2000MM

1000 - 3000 / Piece
1 Piece(Min.Order)
  • 100 Piece / Pieces per Month
  • tianjin
  • T/T
  • 20 days