... : C45, 20CrMnTi, 40Cr, 42CrMo We supply: ISO, DIN, ANSI, JIS, BS standard sprocket1) Standard stock and finished bore sprockets/plate ... wheels according to European, American and JIS standards2) Taper bore sprockets3) Sprockets with QD bushes4) ... sprockets, etc2.Material: C45, A3...According to ISO, DIN, ANSI, JIS, BS standard 3.Chain sprocket, taper bore sprocket, standard ...