I just saw this post...that's surprising, because I'm also a Chinese student at OU in mech eng and finished my third year, taking machine design with Pirooz during last winter session...but I never knew there was another Chinese student in my class I didn't know......and you should be in my year...
Are you studying mech eng at the undergrad level?
And now, I'm looking for used manufacturing and industrial planning books for fall, know any place to get them?