... .0*3-80*600mm*L, 4.steel Grade:SUP9,SAE5160,SUP12V,51CrV4 Spring flat steel Bar is one of our main products, so ... countries and regions .About products details is as followings.1.Steel grade:SUP9A,SUP11A,55CrSi,SA9254V,50CrVA,SUP7,SUP9, 60SI2CrVA,SAE9254 ... L/C or deposit.7.MOQ:15MT each sizes.Meanwhile, we also supply spring steel bar by cold drawn + oil heat treatment, and ...