... 2.Material:ACM,ECO,NBR 3.Process:Extrusion 1, Auto ventilation Hose for Crankcase2,Material:ACM,ECO,NBR3,Process:Extrusion4,Detail:ItemAuto ... ,GM6260MQuality Certification ISO9001:2000 , TS16949 We are a maufacturer of auto rubber parts with 15 years experience. Customer drawings and OEM ...