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һĿ¼õ

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1)unary minus,һĿ¼õ

2)double baiting,every two rows,һĿ¼õһĿ

3)unary minus,һĿ¼õËã

4)one mesh in four rows,one point two bars ,two bars one point,¶þÄ¿¼õһĿ

5)one bar four point taper,¾ÅÄ¿¼õһĿ

6)every four rows,Á½Ä¿¼õһĿ