| http://www.w3.org/ns/prov#value | - Method for the production of open-pored sintered bodies composed of glass, having a large open-pore volume, high flexural tensile strength, predetermined pore sizes and high flow velocities for fluids and gases, by means of sintering a glass-salt mixture followed by washing out the salt, including theproducing a first granulated material composed of a first fine grained glass powder, coarse graine
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