4130 4140 42CrMo4 4340 Forged Seamless Steel Pipe Oil Well Pipe sleeves Coupling Pipe Petroleum Indu
- USD $ 60 - $6000 / Piece
- 1 Piece / Pieces
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4130 4140 42CrMo4 4340 Forged Seamless Steel Pipe Oil Well Pipe sleeves Coupling Pipe Petroleum Indu