HUAJING FACTORY manufacture all kinds of leaf spring for semi-trailers, buses, trucks.,we use material SUP6,SUP7,SUP9 TYPECHORD LENGTHWIDTHCHORD HEIGHTTOTAL PCSTHICKNESS/PCASSEMBLY WEIGHTBH001112066.259169086BH0021180125121210086BH003120068.5121210082.524006-020163790961914-1826532006-20218201201101714-2039028-000-00317651201141116220 Remark: Material standard SUSP6, SUP7, SUP9, We also can adopt ...