... spring Dimension:100*45mm. Material: 50CrVA ISO/TS13949 1.NameScania Volvo Suspension beam spring2.standardDIN, ASTM,JIS,BS,AS,ISO,GB ... ,No truck leaf spring heavy duty nstandard bolt(according to your order),etc3.MaterialSpring Flat Bar, 60Si2Mn, SUP9 ... , Mid-East, Euro, North-America, South-America and Africa. Scania Volvo Suspension beam spring