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.
Transmission of information is the symbol of the envelope, but once-use envelope will cause the waste of natural resources. This envelope can be re-used. Without losing information, it promises our contribution to the environment.
Kuan Cheng Longdi Sun Chuan Cao Yijun Zhao