... :50CrVA No of leaf: 2 leave suspension Air linker 1.Namesuspension Air linker 2.standardDIN, ASTM,JIS,BS,AS,ISO, ... be according to your order); 80% of the production are for OEM customers and left for export ... drawings.We have complete labs to inspect the products from raw material to finished assembly.We ... heavy duty truck and trailers and light vehicles.The raw material we use are SUP7,SUP9,SUP9A ...