Piston Cup 1.75 OD CXV-BN (SKU:5259944) HNBR/NBR composite rubber (hardness Shore A 70±5) with vulcanization molding (crosslinking ≥90%), compatible with API 7K mud pumps (pressure differential resistance ≥50MPa), temperature range -35℃~150℃, fits FMC Bean high-pressure systems.
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