Thanks, It is very educational....3 D2 ?3 d6 Y( b. a) X" ?
here is a link you can read the drawings % G" I6 U4 A$ _* B% c6 L- l) H 5 f& _/ b: I) ohttp://www.dfg.cn/gb/zjjy/7/zjjy-7-1.htm . G1 ~8 ~" I) `0 E) Y0 N- z/ c3 f+ e" v, P
[ 本帖最后由 rockylily 于 2006-12-21 13:52 编辑 ]