1. Seals kit: From USA, durable and hard-wearing with long service life. 2. Heat treatment: Quenching&Tempering which makes the piston rod super high hardness. 3. Cleaning: Ultrasonic cleaning 4. Cutting: High precision provided by automatic roller cutting machine. 5. Testing: Ultrasonic detector, spectrograph, CMM, metallography, chrome thickness tester. 6. Advantage: Simple structure & reliable work, easy maintenance & diverse connecting ways 7. Plan: Different manufacturing plans for different customers. 8. MOQ: 10 PCS of hydraulic cylinder for snowplow 9. Lead time: 10~30 days depends on quantity & whether customized. 10. Warranty: Change a new one and we pay for the air freight in 3 years warranty time.