4130 4140 42CrMo4 4340 Forged Seamless Steel Pipe Oil Well Pipe sleeves Coupling Pipe Petroleum Indu

USD $ 60 - $6000 / Piece
1 Piece(Min.Order)
  • 0 Piece / Pieces per Month
  • T/T L/C D/P D/A
  • 7 days