valve guide 1-ISO/TS16949, ISO14000,QS9000 2-Standard of Europe 4 & 5 3-Power metallury 4-Factory detrict.delivery in time Products Description Engine Valve guideMaterail: Power metallury,alloy cast iron, heat-resisting grey iron.copper etc.ISO/TS16949, ISO14000,QS9000High temperature endurance, Corrosion resistance 1.Application: ISUZU,HINO,NISSAN,TOYOTA,HONDA,MITSUBISHI,SUZUKI,LEXUS,MAZDADAEWOO ...