| http://www.w3.org/ns/prov#value | - If the wool is composed of say fibers or strands of such materials as ceramic glass, this will be more temperature, abrasion and corrosion resistant than metals, but will be more susceptible to ???flaking,??? that is particles or whiskers becoming detached from the general mass by the force of the gas flow, to perhaps lodge in a sensitive area downstream, such as a valve.
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