Thanks, It is very educational.... ! ]# z7 m4 m1 p# }6 Dhere is a link you can read the drawings u1 p9 {, q; n7 }/ M) \ 5 S. m& ?2 w, k* U2 Qhttp://www.dfg.cn/gb/zjjy/7/zjjy-7-1.htm 4 R9 x Q2 M* q! P2 D7 D 4 W5 t) u' s! V2 H, D$ N$ K[ 本帖最后由 rockylily 于 2006-12-21 13:52 编辑 ]