http://www.gn-desander-desilter.com/zqj-series-desander-and-desilter-for-solids-control-system/ GN Hydrocyclone desander desilter for drilling mud solids control,10 inch desander cones,4 inch desilter cones are popular used in drilling fluids system for oil gas drilling,and HDD(Horizontal directional drilling).GN also manufacture shale shakers,centrifuges,complete equipments for mud tank system-GN Desander Desilter. Sat, 02 Jul 2011 03:46:44 +0000 hourly 1 http://wordpress.org/?v=3.1.3