... Screens ,Batterfly valve,Bearing,Cyclone ,Grand Packing, pipe racking and other spare parts in oilfield. GN solids control can ... Shaker Screens ,Batterfly valve,Bearing,Cyclone,Grand Packing,pipe racking and other spare parts in oilfield.GN Solids Control ... into the international market successfully. We have exported solids control products to many overseas countries like: Indian, Korean, Venezuela, ...