Piston Cup 3.00 Inch Supergold Flat Back (SKU P512118), forged from HNBR/Kevlar composite with precision vulcanization (API 7K-compliant for FMC Bean mud pumps), pressure resistance ≥20000psi, temperature range -20℃~+150℃, 50% corrosion resistance enhancement, dynamic sealing longevity ≥1300 hours.
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