Preliminary test to Experts on plastic material engineering :5 U1 A6 q( N% k2 | This was a part of enterance examination of material engineering for Doctors, I have had a look at them, and believed that you can not answer these questions unless you are a very professional and have wide range of academic knowledge on plastic engineering, should you even get any answer, please let's share them with you!! * I \0 |2 ~) s$ u1 U
[复制链接]
发表于 2007-1-17 10:06:23
发表于 2007-1-26 12:30:23