Drawing Customized Cobalt Based Alloy Stellite 20 Valve Ball and SeatCobalt based Alloy Stellite Valve Balls and Seats,API 11AX Cobalt Alloy Valve Ball and Valve Seat V11-225 C1 Cobalt Based Stellite 20 Valve Balls and Co-Cr Alloy Valve Seats for Sucker Rod Pump Product Description Material: Stainless Steel, 420, etc.Hardness: HRC26~HRC58Style: Solid/HollowDimensional Tolerance: ±0.0015mmPackage: Packed in one box.420: The representative of martensitic steel, commonly known
Drawing Customized Cobalt Based Alloy Stellite 20 Valve Ball and SeatCobalt based Alloy Stellite Valve Balls and Seats,API 11AX Cobalt Alloy Valve Ball and Valve Seat V11-225 C1 Cobalt Based Stellite 20 Valve Balls and Co-Cr Alloy Valve Seats for Sucker Rod Pump Product Description Material: Stainless Steel, 420, etc.Hardness: HRC26~HRC58Style: Solid/HollowDimensional Tolerance: ±0.0015mmPackage: Packed in one box.420: The representative of martensitic steel, commonly known
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