... as 462Q, 474Q,372Q, 479Q, 4G18, 481H and these rods and etc There are 17 types of automobile engine ... as 462Q, 474Q,372Q, 479Q, 4G18, 481H and these rods and etc. We have the Chongqing municipal level technical ... forming process of forged pieces on the computer and to analyze the flow rules of metal,the ... forming of forged pieces and the distribution of mechanical fields of the moulds ...