... , 20CrMnTi, 40Cr, 42CrMo We supply: ISO, DIN, ANSI, JIS, BS standard sprocket1) Standard stock and finished bore sprockets/plate wheels according to European ... , A3...According to ISO, DIN, ANSI, JIS, BS standard 3.Chain sprocket, taper bore sprocket, standard sprocket, idler sprocket, stainless steel sprocket. 4 ...