valve: Color: yellow and black Elongation at break:212% Siu A hardness:A77 Tensile strength:6.1Mp,Impact of flexibility: 37% Valve HFV5786923:1. Color: yellow and black.2. Elongation at break: 212%.3. Siu A hardness: A77.4. Tensile strength: 6.1Mp.5. The impact of flexibility: 37%. Valve HFV5786923