
High Pressure Washer Plunger Piston with Wear Proof Coating. Wear Proof Coating: Plasma spray coating with HV800-900 hardness for superior abrasion and corrosion resistance. Customizable Size: Size is fully customized to meet specific high-pressure washer part requirements. High Hardness Range: Coating hardness ranges from HV650 to HV1300 with thickness up to 0.5mm. OEM Service: OEM is welcome with strict protection of customer intellectual property. Free Samples: Free samples are available; customers only pay for express shipping fees. ISO9001 Certified: Company passed ISO9001:2008 quality management system certification. Fast Response: All inquiries are replied to within 12 hours by professional team. Direct Factory Price: Direct manufacturing provides competitive pricing without middlemen.