Thanks, It is very educational....: T6 L u8 {2 G1 y
here is a link you can read the drawings5 M: j7 A( j3 E, O; ?. D
( K3 h( Q1 `5 ?1 h2 l http://www.dfg.cn/gb/zjjy/7/zjjy-7-1.htm % A) W2 _. ^9 U/ E/ }: _) o- B$ F) ^
[ 本帖最后由 rockylily 于 2006-12-21 13:52 编辑 ]