1.Type: Intake valve spring retainer 2.Material: 20Cr 3.Brand Name: Derun 4.OEM Service: Available OEM All types of Intake Valve Spring Retainer, Spring Valve RetainerIntake Valve Spring Retainer Specification1. OEM parts 2. Good quality and reasonable price 3. Best after sell service 4. ISO 9001 CERTIFICATE TS16949 CERTIFICATE5. Material: 20Cr We also as to your drawing or sample Spring valve ...