Cylinder Cover O-Ring (Model: SC-35), manufactured from hydrogenated nitrile rubber (HNBR) via compression molding vulcanization with Shore hardness 75±3A and temperature resistance -30°C to 150°C, compatible with Myers Aplex SC-35 mud pump cylinder head sealing systems. API 7K certified with tear strength ≥30kN/m, sealing performance enhanced by 40%, designed for oil rig high-pressure (≤3500psi) corrosive applications。
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