Dear sir/madam
I am looking for some materials that must be meet the demand following:
1. These materials must be to discharge largely quantity of heat or to absorb
largely quantity heat during phase change process.
2. The material must be largely obtained from marketing.
3. The material must be very cheap.
4. The material must be no harmful to environmental and human.
I will be grateful very much if you can let me know above the material.
Jamie ZHU
