Sign up for
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Clean-down is a desk with a hole.You can clean it up simply by pouring down all the waste into the bag on the side, without smudging the floor.
Yihuan Gu|Liting Du|Li Song|Lifu Yao