C04B 20/00
Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups [CPC: C04B14/00] - [CPC: C04B18/00] and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups [CPC: C04B14/00] - [CPC: C04B18/00] specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
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C04B 20/00
Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups [CPC: C04B14/00] - [CPC: C04B18/00] and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups [CPC: C04B14/00] - [CPC: C04B18/00] specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
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