... , DODGE, JEEP, CUMMINS, CATERPLILLAR, LADA, SCANIA, ETC.4. Make the appointed specification goods according to drawings or samples5. Participating in ... Valve Seat Specification (JB/T)" & Internal Combustion Engine Valve Guide Specification (JB/T)"6. ISO9001 Quality Control System, passed ... Quality Management System Certification7. High quality, competitive price and secure service BENZ valve guide