Valve Cover DP Series (SKU:24797A000) Precision-forged from ASTM A182 F35CrMo alloy steel with quenching+tempering (HRC 28-32) and hot phosphate corrosion protection. Tensile strength ≥650MPa, API 7K compliant for mud pump fluid ends. Salt spray tested ≥1200h, NACE MR0175 certified. Sealing surface lapping precision Class III.
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