Coconut dehuskar by Liew Sheng Yee .2. Design a movable air compressor by Goh Ket Ching. 3. Design an electric machine that blowing and vacuuming leaf in one machine by Tan Lean Yee. 4. Heavy machines transporting system by Foo Boon Khian. 5.User friendly car jack by Kwan Yeow Fai. 6. Wild grass extractor...

by WONG SANG SING
Published 2001