CRF Plant for Mining Client: Case in Development CRF Cemented rockfill (CRF) plays an important role in the mining process, providing critical backfill support for previously-excavated mine areas. In applications where density and moisture content of CRF are critical to safe and compliant operation, reliable mixing and production machinery can make the difference. More About CRF Contact Us Below Business Inquiries * Indicates Required field Request Type *TunnelingMiningLDCC or Call +1.604.288.2500 81177