... ,tractors 1) Apply to most of car model 2) Standard and stable material Die casting Valve Body( used in ships,marine,tractors)1 ... , Alloy steel, Grey iron 12. Quality certificates: ISO9001, USA UL 13. Dimension As per requirement1) Product name: Die casting Valve Parts used in ... as your drawings or samples4) Grade: 8.8, 10.9, 12.9 etc.5) Surface treatment: Chrome plated, ZINC, Protective oil ...