Added: Jul 26, 2008
From: foammachine
Duration: 1:52
EASTFIELD FOAM MACHINE INDUSTRIAL LIMITED (china) Add: xiansha industrial zone ,gaobu town ,dongguan ,canton , china Tel : 86-769-88415199 fax :86-769-81300754 Homepage :www.foammachine-home.com china foam cutter, saws, slitters, carrousels, cnc, convoluters and peelers for cutting a wide variety of flexible and rigid polyurethane foams and urethane machinery To give a piece of foam memory, you start with a synthetic polyurethane foam material and add certain types of chemicals which add an increase in weight or density to the foam. With the addition of these chemicals, a non-toxic, visco-elastic foam material is created. However, there are many features along the way that will help determine what type of memory foam you end up with. To understand exactly what differences are found in each final product, you first have to start with understanding how to grade each foam.
Channel: Sports
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