| http://www.w3.org/ns/prov#value | - A suitable plastisol formed by compounding a synthetic resin with suitable solvents, plasticizers, and pigments can be charged with an inert gas, such as carbon dioxide in a suitable charging vessel or tower and introduced into the two-part mold at atmospheric pressure, whereupon the plastisol will form a fine .pored foam which passes freely through the interstices of that portion of the screen Wi
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