Cold Sheet
$3000-5000 CAD
货到付款
I'm looking for someone to create a thin, flexible sheet/liner that freezes or becomes instantly cold once a liquid is introduced to it. It must be non-toxic. This sheet/liner must be safe to use & harmless to the human body. Think of those hot packs that turn instantly hot once broken or the cold packs that do the same but much thinner. Like a 4"x4" piece of paper that freezes once a liquid is introduced.
项目ID： #9287073
关于项目
有4名威客正在参与此工作的竞标，均价$4164/小时
I only bid when I know I can deliver my best services. For further clarification about my work, kindly visit my portfolio here: https://www.freelancer.com/u/saqibharoon345.html?page=portfolio
