By controlling melting charge,especially co ntrolling the contents of pearlite stabilizing el-ements,properly selecting co mposition,as well as by optimizing gating system and risers,the as-cast ferri te nodular iron fork-arms for Dongfeng-Honda dampener have been successfully produced on DISA moulding-pouring line.

In the present paper,achievements on some asymmetric behavioral traits of human beings(including handedness,hand clasping,arm folding,foot preference,leg folding,stride type,eye preference)by domestic and international scholars were analyzed.