A method is provided for manufacturing cement fiber sheets by supplying slurry primarily including fibers and cement as main material components onto a permeable sheet, and suctioning and dewatering the slurry. The method includes a foreign matter removing operation for removing foreign matter in the...http://www.google.es/patents/US6702966?utm_source=gb-gplus-sharePatente US6702966 - Method for manufacturing cement fiber sheets
