Thanks, It is very educational....0 m: N( H/ P3 B8 z
here is a link you can read the drawings; D, Q# m) o/ m
- S" {, N) }$ o J/ } http://www.dfg.cn/gb/zjjy/7/zjjy-7-1.htm3 Q1 {, ^ C* x1 H( C) ?
9 P s' c7 l8 T+ w. ]+ }' ^[ 本帖最后由 rockylily 于 2006-12-21 13:52 编辑 ]