The layout of fridge grounding pin,rational joint-edge process of products outline,multi-position bending forming method to prevent from material rebound,as well as small punching critical points and rational die structure are introduced.

The external reasons: the customs of Baby Marriage, Meeting-foot marriage, usury and ghost belief, together with the so-called traditional woman morals deeply -rooted in her heart leads to Dou’e’s final tragedy.

For a long time there have no lucubrate about the peculiarity and fracture mechanism of steel structure fixed column base.